bludova_t_v_praktikum_z_vishoi_matematiki
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Продовження табл. 5.1
Номер |
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f (y) |
g (x) |
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u |
h (u) |
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q (u) |
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варіанта |
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68 |
1 |
1 |
1 |
0 |
yy |
x2 |
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xy |
arcsin u2 |
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lg (u + 8) |
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69 |
2 |
2 |
1 |
1 |
2y2 + 8 |
x 9 |
xy2 |
arcsin2 u |
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u |
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70 |
1 |
0 |
1 |
1 |
y7 + y6 |
3 x2 1 |
x2y |
u3 + 5 |
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4 u3 5 |
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71 |
2 |
2 |
1 |
0 |
7y2 |
(6x + 1)2 |
x3y |
u2 + 5 |
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lg (u + 1) |
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72 |
1 |
1 |
0 |
1 |
4y |
2 |
x 1 |
x3(y3 + |
4 |
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2 |
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1) |
u + 9 |
ln (5u + 3) |
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73 |
1 |
1 |
1 |
1 |
y6 + y9 |
ln x |
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sin (x2y) |
cos u |
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tg (u + 1) |
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74 |
1 |
1 |
1 |
1 |
sin y |
cos x |
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x2y2 |
arcsin u |
cos (u + 8) |
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75 |
1 |
0 |
1 |
1 |
cos y2 |
x2 + x |
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xy + 5 |
arccos u |
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sin (u + 9) |
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76 |
1 |
1 |
0 |
1 |
tg y3 |
x3 + x2 |
x2y + 4 |
arcsin u |
cos (u2 + 10) |
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77 |
1 |
1 |
1 |
0 |
ctg y |
x2 + x4 |
xy + 10 |
arcsin u3 |
cos (u7 + 7) |
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78 |
1 |
1 |
0 |
1 |
sin y2 |
sin x |
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xy3 + 4 |
arccos u |
cos (8u + 3) |
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79 |
1 |
1 |
1 |
0 |
y |
y3 |
(sin x) |
x |
xy + 1 |
arccos u |
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2 |
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cos u |
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80 |
1 |
1 |
0 |
1 |
ln y |
ex2 x |
x2y + 4 |
ln u |
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cos u |
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81 |
1 |
1 |
1 |
1 |
y3 + 3y |
ex + xe |
xеy |
ln2u |
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3 sinu |
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82 |
1 |
0 |
1 |
1 |
cos y2 |
ex3 |
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xye |
ln u |
4 cos u 8 |
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83 |
1 |
1 |
0 |
1 |
ln3(y + 8) |
ex2 x |
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xe y |
arccos ( u) |
5 |
cos (u2 8) |
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84 |
1 |
1 |
1 |
0 |
ey + ye |
xsin x |
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xy |
arcsin ( u) |
3 |
sin (u 7) |
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85 |
1 |
1 |
1 |
1 |
ey2 |
xx |
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yx |
arctg u |
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sin3 u |
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86 |
1 |
0 |
1 |
1 |
ey + y |
x + 7x |
xy |
arctg u2 |
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cos u2 |
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87 |
1 |
1 |
0 |
1 |
ye + y2 |
x7 + 5x |
xy |
arcsin u |
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sin u3 |
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88 |
1 |
1 |
1 |
1 |
ye + y3 |
x8 + 7x |
exy |
аrcsin (u + 7) |
cos (u2 + u) |
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89 |
1 |
0 |
1 |
1 |
ey + 8 |
x3 + cos x |
x2y |
аrccos (u + 1) |
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tg (u3 + 1) |
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90 |
1 |
1 |
0 |
1 |
cos y |
cos 5x |
x(y + 1) |
arccos2 u |
ctg (u5 + 6) |
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100
91 |
0 |
1 |
1 |
1 |
sin y2 |
sin (x2 – 7) |
y(x2 + 1) |
arccos u |
ctg (u + 7) |
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Закінчення табл. 5.1 |
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Номер |
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f (y) |
g (x) |
u |
h (u) |
q (u) |
варіанта |
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92 |
1 |
0 |
1 |
1 |
cos y |
ex + 7 |
xy3 |
arctg u |
ctg2 (u + 3) |
93 |
1 |
0 |
1 |
0 |
yy |
ex + 9x |
x3y |
arctg2 u |
tg2 (u + 7) |
94 |
1 |
0 |
1 |
1 |
sin y |
ex2 |
xy + 5 |
arctg u2 |
cos u |
95 |
1 |
1 |
0 |
1 |
cos2y |
esin x |
x2y + 3 |
tg u2 |
sinu |
96 |
1 |
1 |
1 |
1 |
3tg2y |
ex + 8 |
xy + 8 |
ctg u3 + 4 |
cos u2 |
97 |
1 |
1 |
0 |
1 |
y3 + y |
cos x2 |
xy + 5 |
4u + 5u |
3 sinu |
98 |
1 |
0 |
1 |
1 |
cos y2 |
ex + 7 |
xy2 + 7 |
u7 + 9u |
ln sin u |
99 |
1 |
1 |
1 |
0 |
yy + 7 |
(x + 8)e |
xy + sin x |
u5 + u |
cos (u2 + 7) |
100 |
1 |
1 |
1 |
1 |
y + 5 |
(x + e) |
xy + 5 |
u + ln u |
cos (u + 9) |
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Задача 5.2. За даними табл. 5.2 знайти похідну за напрямом s (cos 45o , cos 60o , cos 60o ) і градієнт функції трьох змінних у точці
u = x y z + a11 x + a12y + a22z . |
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Таблиця 5.2 |
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Номер |
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a11 |
a12 |
a22 |
x0 |
y0 |
z0 |
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варіанта |
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1 |
1 |
1 |
1 |
2 |
2 |
2 |
– 1 |
– 1 |
– 1 |
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2 |
2 |
1 |
1 |
3 |
3 |
3 |
– 1 |
– 1 |
0 |
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3 |
3 |
1 |
1 |
4 |
4 |
4 |
– 1 |
0 |
1 |
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4 |
4 |
1 |
1 |
1 |
1 |
2 |
– 1 |
– 1 |
0 |
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5 |
5 |
1 |
1 |
2 |
2 |
3 |
– 1 |
1 |
1 |
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6 |
1 |
1 |
2 |
4 |
3 |
2 |
– 2 |
1 |
– 1 |
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7 |
2 |
2 |
2 |
3 |
– 3 |
3 |
– 1 |
1 |
1 |
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8 |
2 |
3 |
4 |
1 |
2 |
3 |
– 10 |
– 9 |
– 5 |
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9 |
1 |
2 |
3 |
– 7 |
– 8 |
– 9 |
– 4 |
– 5 |
1 |
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10 |
3 |
2 |
4 |
2 |
– 10 |
5 |
6 |
5 |
1 |
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11 |
4 |
5 |
6 |
3 |
– 2 |
– 7 |
1 |
1 |
1 |
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12 |
9 |
10 |
15 |
16 |
– 3 |
– 4 |
– 1 |
1 |
1 |
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101
13 |
3 |
2 |
2 |
– 5 |
6 |
7 |
1 |
– 1 |
1 |
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Продовження табл. 5.2 |
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Номер |
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a11 |
a12 |
a22 |
x0 |
y0 |
z0 |
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варіанта |
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14 |
4 |
5 |
16 |
3 |
2 |
1 |
1 |
1 |
– 1 |
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15 |
9 |
4 |
3 |
– 2 |
5 |
6 |
– 1 |
1 |
1 |
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16 |
4 |
5 |
6 |
– 1 |
3 |
2 |
1 |
1 |
– 1 |
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17 |
1 |
2 |
3 |
– 9 |
12 |
15 |
1 |
2 |
– 3 |
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18 |
2 |
3 |
4 |
– 2 |
3 |
2 |
1 |
– 2 |
– 4 |
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19 |
1 |
4 |
8 |
– 9 |
– 3 |
4 |
– 2 |
1 |
3 |
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20 |
1 |
2 |
3 |
4 |
– 5 |
– 6 |
1 |
1 |
3 |
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21 |
2 |
1 |
4 |
5 |
– 6 |
– 2 |
1 |
– 1 |
– 2 |
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22 |
4 |
3 |
6 |
3 |
– 4 |
– 2 |
1 |
– 1 |
– 1 |
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23 |
5 |
6 |
7 |
4 |
– 5 |
– 6 |
1 |
1 |
1 |
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24 |
2 |
7 |
8 |
– 2 |
11 |
12 |
1 |
– 1 |
1 |
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25 |
4 |
3 |
2 |
– 1 |
5 |
6 |
1 |
2 |
1 |
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26 |
6 |
7 |
3 |
4 |
5 |
– 6 |
1 |
– 2 |
– 1 |
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27 |
3 |
8 |
9 |
– 4 |
5 |
15 |
1 |
– 1 |
3 |
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28 |
2 |
3 |
6 |
– 7 |
– 9 |
18 |
1 |
1 |
2 |
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29 |
4 |
5 |
3 |
20 |
11 |
– 5 |
1 |
– 1 |
– 2 |
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30 |
9 |
7 |
6 |
16 |
– 2 |
– 8 |
– 1 |
– 2 |
3 |
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31 |
3 |
2 |
4 |
1 |
2 |
– 3 |
– 4 |
– 2 |
– 3 |
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32 |
2 |
1 |
4 |
– 2 |
– 3 |
– 4 |
1 |
1 |
– 1 |
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33 |
3 |
2 |
5 |
– 1 |
3 |
2 |
1 |
2 |
3 |
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34 |
4 |
5 |
3 |
– 2 |
3 |
4 |
1 |
– 2 |
– 1 |
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35 |
2 |
3 |
4 |
– 3 |
2 |
2 |
– 1 |
1 |
3 |
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36 |
4 |
5 |
6 |
– 3 |
2 |
1 |
4 |
1 |
3 |
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37 |
2 |
3 |
4 |
2 |
– 3 |
– 4 |
1 |
– 1 |
1 |
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38 |
4 |
6 |
7 |
– 9 |
8 |
3 |
2 |
1 |
– 1 |
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39 |
2 |
6 |
7 |
10 |
– 12 |
– 4 |
1 |
– 1 |
5 |
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40 |
3 |
2 |
1 |
2 |
– 1 |
– 3 |
1 |
– 1 |
– 2 |
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41 |
5 |
7 |
8 |
2 |
– 10 |
– 5 |
1 |
– 1 |
1 |
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102
42 |
3 |
4 |
5 |
– 2 |
– 4 |
– 6 |
1 |
– 1 |
1 |
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Продовження табл. 5.2 |
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Номер |
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a11 |
a12 |
a22 |
x0 |
y0 |
z0 |
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варіанта |
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43 |
4 |
5 |
6 |
– 3 |
– 5 |
– 7 |
1 |
1 |
– 1 |
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44 |
3 |
4 |
7 |
6 |
7 |
9 |
1 |
– 1 |
1 |
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45 |
4 |
6 |
7 |
6 |
– 7 |
– 2 |
1 |
– 2 |
– 3 |
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46 |
4 |
7 |
6 |
5 |
– 4 |
– 3 |
1 |
1 |
– 1 |
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47 |
3 |
2 |
1 |
4 |
– 3 |
– 2 |
1 |
– 1 |
1 |
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48 |
2 |
7 |
5 |
– 4 |
– 3 |
– 3 |
1 |
1 |
– 1 |
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49 |
3 |
6 |
7 |
– 4 |
2 |
– 4 |
2 |
– 1 |
1 |
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50 |
4 |
5 |
– 5 |
– 3 |
2 |
8 |
1 |
– 1 |
1 |
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51 |
3 |
2 |
– 1 |
2 |
– 3 |
– 4 |
1 |
1 |
– 1 |
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52 |
4 |
6 |
7 |
2 |
– 2 |
– 3 |
1 |
– 1 |
2 |
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53 |
3 |
8 |
9 |
– 3 |
4 |
5 |
6 |
1 |
1 |
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54 |
4 |
5 |
7 |
– 8 |
– 4 |
– 3 |
1 |
– 1 |
– 1 |
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55 |
3 |
2 |
9 |
– 10 |
– 12 |
– 4 |
2 |
– 3 |
4 |
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56 |
2 |
6 |
8 |
– 3 |
– 4 |
5 |
3 |
1 |
2 |
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57 |
3 |
4 |
5 |
– 6 |
– 2 |
– 3 |
4 |
1 |
1 |
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58 |
4 |
3 |
6 |
– 7 |
– 3 |
4 |
1 |
– 1 |
1 |
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59 |
3 |
5 |
8 |
1 |
2 |
– 4 |
1 |
– 2 |
3 |
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60 |
7 |
8 |
5 |
2 |
4 |
5 |
– 1 |
1 |
1 |
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61 |
3 |
2 |
7 |
– 8 |
9 |
10 |
1 |
– 1 |
2 |
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62 |
4 |
5 |
9 |
1 |
5 |
6 |
1 |
– 4 |
3 |
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63 |
5 |
4 |
6 |
– 3 |
2 |
4 |
1 |
1 |
– 1 |
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64 |
14 |
10 |
5 |
– 2 |
5 |
6 |
1 |
– 1 |
1 |
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65 |
4 |
3 |
2 |
2 |
4 |
7 |
1 |
1 |
– 2 |
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|
|
|
|
|
|
|
66 |
3 |
5 |
6 |
– 5 |
– 6 |
7 |
1 |
– 1 |
– 2 |
|
|
|
|
|
|
|
|
|
|
|
|
67 |
4 |
3 |
8 |
– 4 |
6 |
– 7 |
2 |
– 3 |
– 1 |
|
|
|
|
|
|
|
|
|
|
|
|
68 |
7 |
1 |
3 |
3 |
2 |
6 |
1 |
2 |
4 |
|
|
|
|
|
|
|
|
|
|
|
|
69 |
3 |
2 |
5 |
4 |
– 5 |
– 6 |
– 1 |
– 2 |
– 1 |
|
|
|
|
|
|
|
|
|
|
|
|
70 |
8 |
6 |
9 |
3 |
4 |
– 5 |
1 |
1 |
– 1 |
|
|
|
|
|
|
|
|
|
|
|
|
103
71 |
9 |
8 |
6 |
– 3 |
– 4 |
4 |
1 |
– 1 |
2 |
Закінчення табл. 5.2
Номер |
|
|
|
a11 |
a12 |
a22 |
x0 |
y0 |
z0 |
|
варіанта |
||||||||||
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|
|
|
|
||
|
|
|
|
|
|
|
|
|
|
|
72 |
5 |
4 |
– 6 |
– 5 |
– 3 |
8 |
1 |
– 1 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
73 |
2 |
3 |
5 |
– 2 |
4 |
6 |
– 1 |
1 |
– 1 |
|
|
|
|
|
|
|
|
|
|
|
|
74 |
3 |
5 |
9 |
– 1 |
– 2 |
3 |
1 |
– 1 |
2 |
|
|
|
|
|
|
|
|
|
|
|
|
75 |
4 |
3 |
2 |
– 4 |
– 3 |
– 2 |
2 |
1 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
76 |
2 |
6 |
7 |
– 9 |
– 4 |
3 |
1 |
– 1 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
77 |
2 |
3 |
1 |
8 |
6 |
2 |
1 |
– 1 |
– 1 |
|
|
|
|
|
|
|
|
|
|
|
|
78 |
4 |
5 |
4 |
2 |
3 |
3 |
2 |
– 3 |
2 |
|
|
|
|
|
|
|
|
|
|
|
|
79 |
5 |
6 |
2 |
2 |
4 |
– 2 |
1 |
– 2 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
80 |
6 |
7 |
2 |
– 2 |
3 |
4 |
5 |
– 1 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
81 |
4 |
2 |
3 |
5 |
– 3 |
– 2 |
1 |
1 |
– 1 |
|
|
|
|
|
|
|
|
|
|
|
|
82 |
3 |
4 |
5 |
– 3 |
2 |
1 |
1 |
– 1 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
83 |
4 |
5 |
6 |
2 |
3 |
4 |
– 1 |
1 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
84 |
2 |
6 |
7 |
– 3 |
4 |
5 |
1 |
1 |
– 2 |
|
|
|
|
|
|
|
|
|
|
|
|
85 |
5 |
7 |
3 |
– 4 |
– 5 |
3 |
1 |
– 2 |
– 1 |
|
|
|
|
|
|
|
|
|
|
|
|
86 |
11 |
8 |
9 |
– 3 |
7 |
9 |
– 1 |
– 3 |
4 |
|
|
|
|
|
|
|
|
|
|
|
|
87 |
4 |
5 |
6 |
2 |
7 |
– 19 |
1 |
– 1 |
2 |
|
|
|
|
|
|
|
|
|
|
|
|
88 |
5 |
6 |
7 |
– 5 |
– 4 |
2 |
2 |
2 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
89 |
4 |
3 |
2 |
– 2 |
3 |
11 |
1 |
– 1 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
90 |
5 |
7 |
8 |
– 4 |
2 |
– 6 |
– 2 |
1 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
91 |
6 |
4 |
7 |
2 |
– 3 |
– 4 |
– 1 |
1 |
2 |
|
|
|
|
|
|
|
|
|
|
|
|
92 |
3 |
5 |
6 |
7 |
– 8 |
– 9 |
– 2 |
1 |
– 1 |
|
|
|
|
|
|
|
|
|
|
|
|
93 |
4 |
11 |
3 |
– 2 |
– 7 |
4 |
1 |
– 1 |
3 |
|
|
|
|
|
|
|
|
|
|
|
|
94 |
2 |
8 |
9 |
– 10 |
– 15 |
– 3 |
2 |
1 |
4 |
|
|
|
|
|
|
|
|
|
|
|
|
95 |
3 |
4 |
9 |
– 5 |
6 |
2 |
– 3 |
4 |
2 |
|
|
|
|
|
|
|
|
|
|
|
|
96 |
1 |
12 |
3 |
– 6 |
– 2 |
4 |
3 |
2 |
1 |
|
|
|
|
|
|
|
|
|
|
|
|
97 |
4 |
5 |
6 |
– 3 |
– 4 |
12 |
1 |
1 |
– 4 |
|
|
|
|
|
|
|
|
|
|
|
|
98 |
3 |
1 |
2 |
10 |
30 |
16 |
1 |
– 1 |
2 |
|
|
|
|
|
|
|
|
|
|
|
|
99 |
5 |
4 |
3 |
– 2 |
3 |
4 |
– 1 |
– 2 |
3 |
|
|
|
|
|
|
|
|
|
|
|
104
100 |
3 |
8 |
7 |
8 |
2 |
3 |
1 |
1 |
2 |
|
|
|
|
|
|
|
|
|
|
Задача 5.3. За даними табл. 5.3 знайти екстремум функції
двох змінних z a11x2 |
2a12 xy a22 y2 |
a1x a2 y a3. |
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|
|||||
|
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|
|
|
Таблиця 5.3 |
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|
Номер |
а11 |
|
а12 |
а22 |
|
а1 |
а2 |
|
а3 |
варіанта |
|
|
|
||||||
|
|
|
|
|
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|
|
|
|
|
|
|
|
|
|
|
|
|
|
1 |
2 |
|
1 |
3 |
|
4 |
– 5 |
|
– 6 |
|
|
|
|
|
|
|
|
|
|
2 |
3 |
|
4 |
8 |
|
– 3 |
– 2 |
|
– 1 |
|
|
|
|
|
|
|
|
|
|
3 |
4 |
|
2 |
3 |
|
1 |
2 |
|
2 |
|
|
|
|
|
|
|
|
|
|
4 |
– 7 |
|
3 |
– 5 |
|
1 |
– 1 |
|
8 |
|
|
|
|
|
|
|
|
|
|
5 |
– 9 |
|
– 4 |
– 3 |
|
– 1 |
– 2 |
|
3 |
|
|
|
|
|
|
|
|
|
|
6 |
9 |
|
– 3 |
5 |
|
4 |
2 |
|
1 |
|
|
|
|
|
|
|
|
|
|
7 |
10 |
|
5 |
3 |
|
1 |
5 |
|
6 |
|
|
|
|
|
|
|
|
|
|
8 |
8 |
|
4 |
4 |
|
– 5 |
6 |
|
7 |
|
|
|
|
|
|
|
|
|
|
9 |
– 12 |
|
7 |
– 6 |
|
– 3 |
– 2 |
|
– 7 |
|
|
|
|
|
|
|
|
|
|
10 |
6 |
|
1 |
20 |
|
– 1 |
– 1 |
|
4 |
|
|
|
|
|
|
|
|
|
|
11 |
4 |
|
3 |
20 |
|
5 |
6 |
|
7 |
|
|
|
|
|
|
|
|
|
|
12 |
5 |
|
4 |
18 |
|
– 5 |
– 6 |
|
– 7 |
|
|
|
|
|
|
|
|
|
|
13 |
3 |
|
2 |
9 |
|
1 |
2 |
|
3 |
|
|
|
|
|
|
|
|
|
|
14 |
4 |
|
5 |
7 |
|
4 |
5 |
|
6 |
|
|
|
|
|
|
|
|
|
|
15 |
108 |
|
9 |
5 |
|
– 4 |
3 |
|
2 |
|
|
|
|
|
|
|
|
|
|
16 |
95 |
|
6 |
8 |
|
– 3 |
12 |
|
17 |
|
|
|
|
|
|
|
|
|
|
17 |
35 |
|
15 |
16 |
|
– 4 |
– 13 |
|
12 |
|
|
|
|
|
|
|
|
|
|
18 |
41 |
|
16 |
13 |
|
7 |
9 |
|
11 |
|
|
|
|
|
|
|
|
|
|
19 |
39 |
|
25 |
40 |
|
11 |
– 12 |
|
– 13 |
|
|
|
|
|
|
|
|
|
|
20 |
– 5 |
|
– 6 |
– 21 |
|
14 |
– 3 |
|
– 2 |
|
|
|
|
|
|
|
|
|
|
21 |
– 7 |
|
– 5 |
– 17 |
|
9 |
4 |
|
8 |
|
|
|
|
|
|
|
|
|
|
22 |
– 11 |
|
6 |
12 |
|
3 |
7 |
|
– 9 |
|
|
|
|
|
|
|
|
|
|
105
23 |
21 |
40 |
104 |
– 85 |
|
– 35 |
40 |
|
|
|
|
|
|
|
|
24 |
19 |
20 |
28 |
13 |
|
– 3 |
– 4 |
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|
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|
|
Закінчення |
табл. 5.3 |
|
|
|
|
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|
|
|
Номер |
а11 |
а12 |
а22 |
а1 |
|
а2 |
а3 |
варіанта |
|
||||||
|
|
|
|
|
|
|
|
|
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|
|
25 |
12 |
– 11 |
13 |
– 5 |
|
– 6 |
20 |
|
|
|
|
|
|
|
|
26 |
11 |
15 |
26 |
– 7 |
|
– 8 |
9 |
|
|
|
|
|
|
|
|
27 |
13 |
4 |
5 |
– 5 |
|
– 4 |
– 3 |
|
|
|
|
|
|
|
|
28 |
21 |
16 |
31 |
– 13 |
|
– 23 |
– 14 |
|
|
|
|
|
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|
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29 |
5 |
6 |
21 |
3 |
|
5 |
– 6 |
|
|
|
|
|
|
|
|
30 |
4 |
8 |
23 |
– 4 |
|
– 12 |
– 13 |
|
|
|
|
|
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|
|
31 |
5 |
6 |
12 |
– 3 |
|
2 |
1 |
|
|
|
|
|
|
|
|
32 |
1 |
1/2 |
1 |
– 12 |
|
– 3 |
2 |
|
|
|
|
|
|
|
|
33 |
– 1 |
1/2 |
– 1 |
2 |
|
– 1 |
3 |
|
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|
|
|
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|
|
34 |
– 1 |
– 1/2 |
1 |
3 |
|
6 |
0 |
|
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35 |
4 |
– 2 |
1 |
4 |
|
– 2 |
1 |
|
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|
36 |
3 |
– 1 |
3 |
0,5 |
|
4 |
– 0,5 |
|
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|
37 |
2 |
1 |
5 |
– 1 |
|
– 1 |
2 |
|
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|
38 |
10 |
– 3 |
4 |
– 2 |
|
0,5 |
– 5 |
|
|
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|
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|
39 |
2 |
3 |
14 |
5 |
|
6 |
7 |
|
|
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|
40 |
3 |
7 |
40 |
2 |
|
– 2 |
1 |
|
|
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|
|
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|
41 |
3 |
– 4 |
7 |
– 1 |
|
– 2 |
4 |
|
|
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|
42 |
5 |
– 3 |
6 |
3 |
|
2 |
1 |
|
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|
43 |
6 |
– 4 |
8 |
9 |
|
13 |
2 |
|
|
|
|
|
|
|
|
44 |
– 6 |
3 |
9 |
10 |
|
3 |
4 |
|
|
|
|
|
|
|
|
45 |
3 |
– 4 |
9 |
– 3 |
|
– 2 |
3 |
|
|
|
|
|
|
|
|
46 |
1 |
– 5 |
106 |
3 |
|
12 |
2 |
|
|
|
|
|
|
|
|
47 |
4 |
5 |
8 |
– 3 |
|
– 4 |
5 |
|
|
|
|
|
|
|
|
48 |
8 |
– 3 |
9 |
1 |
|
2 |
3 |
|
|
|
|
|
|
|
|
106
49 |
4 |
– 5 |
9 |
1 |
3 |
– 4 |
|
|
|
|
|
|
|
50 |
– 6 |
2 |
– 3 |
1 |
– 2 |
3 |
|
|
|
|
|
|
|
Задача 5.3-1. За даними табл. 5.3-1 знайти екстремум функції двох змінних z f x; y за умови x; y 0.
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Таблиця 5.3-1 |
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Номер |
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|
f (x; y) |
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|
|
(x; y) |
|||||||||||||||
варіанта |
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|
|||||||||||||||||
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51 |
|
x2 + y2 |
x + y – 2 (x 0, y 0) |
|||||||||||||||||||
52 |
|
|
|
|
xy |
|
x2 + y2 – 8 |
|||||||||||||||
53 |
|
1 |
|
|
1 |
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|
|
1 |
|
|
1 |
|
|
1 |
|
||||||
|
|
x |
|
y |
|
x2 |
|
y2 |
|
|||||||||||||
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4 |
|
|||||||||||
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2 |
2 |
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|
||||||||||
54 |
2 cos x + 3 cos y |
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|
y x |
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|
||||||||||||||||
|
4 |
|||||||||||||||||||||
55 |
|
5x + y |
|
1 |
|
|
|
1 |
|
1 |
||||||||||||
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|
x |
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|
y |
|||||||||||||||||
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|||
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|
||||||||||||||||
56 |
|
x3 + y3 |
x + y – 2 (x 0, y 0) |
|||||||||||||||||||
57 |
|
|
|
|
xy |
|
x2 + y2 – 18 |
|||||||||||||||
58 |
5 cos2x + 15 cos3y |
|
y – x – /4 |
|||||||||||||||||||
59 |
|
1 |
|
|
1 |
|
|
|
1 |
|
|
1 |
|
1 |
||||||||
|
|
x |
|
y |
|
x2 |
|
|
y2 |
|||||||||||||
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|
9 |
|
|||||||||||
60 |
|
10x + y |
|
1 |
|
|
|
1 |
|
1 |
||||||||||||
|
|
x |
|
|
y |
|||||||||||||||||
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|||
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|
|||||||||||
61 |
|
1 |
|
|
1 |
|
|
1 |
|
|
1 |
|
1 |
|||||||||
|
2x |
|
2 y |
|
x2 |
|
|
y2 |
||||||||||||||
|
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|
|
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|
8 |
|
||||||||||||
62 |
|
|
|
|
xy |
|
|
x + y – 1 |
||||||||||||||
|
|
|
|
|
||||||||||||||||||
63 |
|
x2 + y2 |
|
3x + 2y – 6 |
||||||||||||||||||
64 |
|
|
x2 – y2 |
|
2x – y – 3 |
|||||||||||||||||
65 |
|
|
|
xy2 |
|
x + 2y – 1 |
||||||||||||||||
66 |
cos2x + cos2y |
|
x – y – /4 |
|||||||||||||||||||
67 |
|
|
|
|
xy |
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x/2 + y/3 – 1 |
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68 |
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xy |
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x/4 + y/6 – 1 |
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69 |
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x2 + y2 |
x/9 + y/10 – 1 |
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107
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x2 + y2 |
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x |
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y |
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70 |
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1 |
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10 |
12 |
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71 |
x2 – y2 |
x/12 + y/13 – 1 |
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Закінчення табл. 5.3-1 |
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Номер |
f (x; y) |
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(x; y) |
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варіанта |
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72 |
xy2 |
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x |
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y / 25 1 |
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16 |
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73 |
x2 – y2 |
x/9 + y/64 – 1 |
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74 |
xy2 |
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x/3 + y/9 – 1 |
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75 |
5 – 3x – 4y |
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x2 + y2 – 25 |
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76 |
1 – 4x – 8y |
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x2 – 8y2 – 8 |
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77 |
x2 + xy + y2 |
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x2 + y2 – 1 |
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78 |
2x2 + 12xy + y2 |
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x2 + 4y2 – 25 |
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79 |
x/10 + y/16 |
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x2 + y2 – 9 |
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80 |
1 + 1/x + 1/y |
1/x2 + 1/y2 – 1/8 |
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81 |
1 + 1/x + 1/y |
1/x2 + 1/y2 – 1/16 |
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82 |
ln (xy) |
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x3 + xy + y3 |
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83 |
x/4 + y/8 |
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x2 + y2 – 16 |
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84 |
xy2 |
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x + 3y – 2 |
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85 |
x2 – y2 |
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4x – y – 12 |
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86 |
x + y |
(x – 1)2 + (y + 1)2 |
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87 |
x2 – y2 |
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x2 + y2 – 2xy |
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88 |
xy2 |
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x – y |
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89 |
xy |
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x4 + y4 |
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90 |
x2 – y2 |
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(x – 1)3 + y2 |
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91 |
x2 + xy + y2 |
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x2 + y2 – 1 |
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92 |
6 – 5x – 4y |
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x2 – y2 – 9 |
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93 |
x2 + xy + y2 – 12x – 3y |
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x – y +5 |
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94 |
xy |
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x + y – 10 |
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95 |
xy2 |
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x + 10y – 1 |
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96 |
cos2x + cos2y |
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x – y – /2 |
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97 |
x2 – y2 |
x/18 + y/19 – 2 |
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108
98 |
1 + 1/x + 1/y |
1/x2 + 1/y2 – 1/16 |
99 |
ln (xy) |
x3 + 3xy + y3 |
100 |
4x2 + 12xy + y2 |
x2 + 9y2 – 25 |
Задача 5.4. За даними табл. 5.4 знайти та зобразити область визначення функції двох змінних
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z |
f x; y g x; y lgh x; y arcsin x2 x . |
Номер |
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f (x; y) |
g (x; y) |
варіанта |
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1 |
1 |
2 |
– 3 |
x2 – y2 + |
xy + |
2 |
0 |
1 |
– 1 |
x2 – y2 + |
x2 – y2 + |
3 |
1 |
0 |
1 |
x2 + y2 – |
xy |
4 |
1 |
1 |
0 |
x2 + y – |
x2 + y – |
5 |
1 |
1 |
1 |
x – y2 – |
x – y + |
6 |
0 |
1 |
1 |
x + y – |
y – |
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7 |
1 |
0 |
1 |
x2 – |
x2 – y2 |
8 |
1 |
4 |
0 |
x2 – |
x2 – y2 – |
9 |
1 |
0 |
1 |
x2 – y2 – |
x – y – |
10 |
0 |
1 |
4 |
y2 – x + |
– y |
11 |
3 |
4 |
5 |
x2 – y2 + |
xy + |
12 |
0 |
2 |
– 4 |
x2 – y2 + |
x2 – y2 + |
13 |
2 |
1 |
– 3 |
x3 + |
x2 – y2 + |
14 |
0 |
1 |
1 |
x2 + y2 – |
x + y – |
15 |
1 |
0 |
1 |
x2 – y2 – |
x – y – |
16 |
0 |
1 |
2 |
x2 + y2 – |
xу + |
17 |
1 |
0 |
1 |
x2 – – y |
x2 – 7 y2 |
18 |
2 |
1 |
– 1 |
x2 + y2 – |
x – y + |
19 |
1 |
0 |
2 |
x2 – x – |
x + y – |
20 |
1 |
1 |
2 |
x2 – |
x2 – y2 – |
21 |
1 |
1 |
3 |
x+ y2 – |
x + y – |
Таблиця 5.4
h (x; y)
x + y
5x – 3
x – x2 + y2 – 5
x2 –x2 – y2 – 5x +x +x +
6x + y
8x + y +
4x – + y
x – y2 –x2 – y +x7 –x8 – x4 +x3 + 5y x4 + x2
x4 + y4 – 2x2y2
109
