ответы ТР
.docОтветы задач ТР по курсу ТВ
2002{1999} г.
№ задачи |
1 |
2 |
3 |
4 |
5 |
|
1 |
0.139 (5/36) |
0.167 (1/6) |
0.0833 (1/12) |
0.167 (1/6) |
0.167 (1/6) |
|
2 |
0.72 |
0.98 |
0.994 |
0.916 |
0.504 |
|
3 |
0.015 |
0.1035 |
0.628 |
0.085 |
0.86 |
|
4 |
0.914 |
0,8704 {0.953} |
0.05792 |
2 {110}) |
45 |
|
5 |
M[X] |
3 |
3.2 |
2.6 |
2.6 |
1.6 |
D[X] |
2 |
1.56 |
2.24 |
2.24 |
10.24 |
|
6 |
C |
0.667 (2/3) |
12 |
1.5 |
0.25 |
5 |
M[X] |
1.556 |
0.923 (12/13) |
0 |
1.6 |
0.833 (5/6) |
|
D[X] |
0.0807 |
0.00507 |
0.6 |
0.107 (8/75) |
0.0198 (5/252) |
|
p |
0.667 (5/12) |
0.99976 |
0.0625 |
0.9375 (15/16) |
1 |
|
F(x) |
(x2-1)/3 |
x12 |
(x3+1)/2 |
x4/16 |
x5 |
|
7 |
g(y) |
0.4,[0,1) 0.2,[1,4] |
0.2,[0,2) 0.1,[2,8] |
0.4,[1,3) 0.2,[3,4] |
1,[2,3) |
1/ (5y1/2),[0,1) 1/ (10y1/2),[1,16] |
8 |
0 |
0.5 |
-0.5 |
0.296 |
-0.2964 |
|
C, Mx, My |
0.5; 0.5; 1.0 |
0.5; 1.333; 0.6667 |
0.5; 2/3; 2/3(0.666) |
1/6; 2.444; 0.8889 |
1/6;14/9(1.6); 16/18(0.9) |
|
Dx,Dy,Kxy |
0.03; 0.03; 0.0 |
0.222; 0.222; 0.111 |
2/9;2/9; -1/9(-0.11) |
0.9136;0.321;0.161 |
0.914; 0.321; -0.16 |
№ задачи |
6 |
7 |
8 |
9 |
10 |
|
1 |
0.5556 (5/9) |
0.444 (4/9) |
6.6-06 |
1.0-05 |
0.0156 |
|
2 |
0.846 |
0.9976 |
0.3024 |
0.8956 (0.8376) |
0.8624 |
|
3 |
0.2105 |
0.3125 |
0.9075 |
0.6923 |
0.84 |
|
4 |
2.305-06 |
0.01132 |
0.678 |
0.9647 |
0.1159 |
|
5 |
M[X] |
1.7 |
-2.3 |
0 |
2 |
1.8 |
D[X] |
9.61 |
8.21 |
4.8 |
2 |
2.36 |
|
6 |
C |
0.25 |
0.5 |
1 |
1.5 |
0.5 |
M[X] |
0 |
1.57 |
0.785 |
0.5235 |
0 |
|
D[X] |
1.333 |
0.4672 |
0.117 (1.85) |
0.052 (0.274) |
0.467 |
|
p |
0.5 |
0.5 |
0.5 |
0.995 (0.5(1-cos3)) |
0.42 (0.5sin1) |
|
F(x) |
0.25x+0.5 |
(1-cosx)/2 |
(1-cos2x)/2 |
(1-cos3x)/2 |
(1+sinx)/2 |
|
7 |
g(y) |
1/(9y2/3), [-1,8] |
2/ (9y2/3), [0,1) 1/ (9y2/3), [1,8] |
1/ (6y1/4), [0,1) 1/ (12y1/4), [1,16] |
1/(20y4/5), [-32,32] |
2/ (15y4/5), [0,1) 1/ (15y4/5), [1,32] |
8 |
0.4472 (1/51/2) |
-0.4472 |
-0.3636 (-4/11) |
0.5 |
0.3636 |
|
C, Mx, My |
1/8; 3.0; 1.0 |
1/8; 3; 1 |
1/6; 1.667; 0.833 |
½; 0.668;1.333; |
1/6; 1.667; 1.1667 |
|
Dx,Dy,Kxy |
1.667; 0.333;0.333 |
1.66675; 0.333; -0.33 |
1.22; 0.3056;-0.22 |
0.222; 0.222;0.111 |
1.222; 0.3056; 0.22 |
№ задачи |
11 |
12 |
13 |
14 |
15 |
|
1 |
0.531 (9/10)6 |
5.0-06 |
0.6 |
0.4167 (5/12) |
0.25 |
|
2 |
0.5964 |
0.8016 |
0.5076 |
0.9664 |
0.4116 |
|
3 |
0.788 |
0.667 (2/3) |
0.3313 |
0.7 |
0.188 |
|
4 |
4 {0.25 } |
1.91-04 |
0.3125 |
0.1094 (7/64) |
5 (6) |
|
5 |
M[X] |
2 |
0 |
0.9 |
5 |
4.4 |
D[X] |
1 |
2 |
2.69 |
1 |
2.64 |
|
6 |
C |
2 |
1.0187 |
2 |
4 |
0.25 |
M[X] |
0.285 |
0.925 |
0.5 |
0.25 |
0 |
|
D[X] |
0.0354 |
0,883 (0.697) |
0.25 |
1/16 |
2 |
|
p |
0.159 |
0.237 (e-1)/e2 |
0.133 |
0.982 (e4-1)/e4 |
0.219 |
|
F(x) |
Sin2x |
1.0187(1-exp(-x)) |
1-exp(-2x) |
1-exp(-4x) |
(4 –x2)/8,[-2,0] (4 +x2)/8,[0,2] |
|
7 |
g(y) |
0.05, [-8,12]
|
0.1, [0,6) 0.05, [6,14] |
1/(4y2), [0.2,1]
|
1/(10y2), [1/11,1]
|
1/ (2.356(1-y2)1/2 [0,0.707) 2/ (2.356(1-y2)1/2 [0.707,1] |
8 |
0 |
0 |
-0.189 |
0.189 (1/281/2) |
0.866 (31/2/2) |
|
C, Mx, My |
¼;; 2; 2/3(0.6667) |
1/8; 3; 5/6(0.833); |
1/6; 2.667; 0.667 |
1/6; 3.33; 0.667 |
½; 2.0; 1.333 |
|
Dx,Dy,Kxy |
0.667; 0.222; 0 |
1.667; 0.30556; 0 |
1.556; 0.222; -0.11 |
1.556; 0.222;0.111 |
0.667; 0.222;0.333 |
|
№ задачи |
16 |
17 |
18 |
19 |
20 |
|
1 |
0.7 |
0.8 |
0.7 |
0.5 |
0.047 |
|
2 |
0.7416 |
0.9784 |
0.587 |
0.1512 |
0.9988 |
|
3 |
0.452 |
0.681 |
0.2813 |
0.036 |
0.191 |
|
4 |
15 |
0.685 (0.4977) |
0.2765 |
0.0039 (1/256) |
200 |
|
5 |
M[X] |
-0.1 |
2.7 |
3.1 |
2.6 |
8 |
D[X] |
21.29 |
20.21 |
19.49 |
9.14 |
2 |
|
6 |
C |
0.582 |
6 |
0.0547 (7/128) |
8 |
4.5 |
M[X] |
0.582 |
0.857 (6/7) |
1.75 |
0.889 |
0 |
|
D[X] |
0.0793 |
0.0153 |
0.086 |
0.00988 |
0.818 (9/11) |
|
p |
0.378 (1/(e1/2+1)) |
0.102 |
0.992 (127/128) |
0.0039 (1/256) |
0.5 |
|
F(x) |
0.582 (exp(x)-1), [0,1] |
X6 |
X7/128 |
X8 |
(x9+1)/2 |
|
7 |
g(y) |
2/ (3.1415(1-y2)1/2), [0,1] |
2/ (3.1415(1-y2)1/2), [0,1] |
2.67/ (3.14(1-y2)1/2), [0,0.707) 1.33/ (3.14(1-y2)1/2), [0.707,1] |
1/y, [1,2.72] |
0.667/y, [1,2.72) 0.333/y, [2.72,7.39] |
8 |
-0.191 |
0 |
0.5 |
-0.5 |
0.191 |
|
C, Mx, My |
1/10; 2.533; 0.933 |
1/8; 2.0; 1.0 |
1/4; 2.667; 0.667 |
¼; 1.333; 0.667 |
1/10; 3.47; 0.933 |
|
Dx,Dy,Kxy |
2.249; 0.329; -0.164 |
1.333; 0.333; 0 |
0.889; 0.222; 0.222 |
0.889; 0.222; -0.22 |
2.249; 0.329;0.164 |
№ задачи |
21 |
22 |
23 |
24 |
25 |
|||
1 |
1/1785 (0.00056) |
0.4084 |
0.695 |
0.25 |
0.333 (1/3) |
|||
2 |
0.889 |
0.6528 |
0.9188 |
0.7952 |
0.2982 |
|||
3 |
0.511 |
0.2979 |
0.1858 |
0.4956 |
0.319 |
|||
4 |
0.273 |
0.659 |
0.953 |
0.041 |
0.0039 (1/256) |
|||
5 |
M[X] |
5.2 |
5.8 |
0 |
0 |
6.1 |
||
D[X] |
9.96 |
8.56 |
46.4 |
63.2 |
4.59 |
|||
6 |
C |
10 |
5.5 |
0.721 |
2 |
2.667 |
||
M[X] |
0.91 (10/11) |
0 |
2.163 |
1.386 |
1.333 |
|||
D[X] |
0.00689 |
0.8462 |
0.728 |
0.0782 |
0.071 |
|||
p |
9.54-07 |
4.88-04 |
0.292 |
0.667 (2/3) |
0.741 |
|||
F(x) |
X10 |
(x11+1)/2 |
0.721lnx |
2(1-1/x) |
4/3(1-1/x2) |
|||
7 |
g(y) |
1/ (2y3/2), [0.25,1] |
Y2/3, [-1,2] |
0.667y2 [0,1) 0.333y2 [1,2] |
1.2/ (3.14(1-y2)1/2), [0,0.5) 2.4/ (3.14(1-y2)1/2), [0.5,1] |
0.75/ (3.14(1-y2)1/2), [-1,0.5) 1.5/ (3.14(1-y2)1/2), [0.5,1] |
||
8 |
-0.3934 |
-0.223 |
0.5 |
0.263 |
0 |
|||
C, Mx, My |
1/8; 2.167; 8.333 |
1/9; 2.296; 0.926 |
¼; 1.33; 1.33 |
1/10; 2.6; 1.1 |
1/8; 4.0;0.667 |
|||
Dx,Dy,Kxy |
1.97; 0.3056;-0.306 |
1.91; 0.346;-0.182 |
0.889; 0.22;0.22 |
2.57; 0.32; 0.24 |
2.667;0.22; 0.0 |
|||
|
|
|||||||
№ задачи |
26 |
27 |
28 |
29 |
30 |
|||
1 |
0.1 |
0.3439 {0.0974} |
0.001 |
0.05 |
0.6561 |
|||
2 |
0.4032 |
0.5488 |
0.7648 |
0.4392 |
0.332 |
|||
3 |
0.5 |
0.5 |
0.3036 |
0.667 |
0.4736 |
|||
4 |
7.89-31 (1/2)100 |
0.387 (0.3151) |
0.659 |
0.4013 |
0,004096 (2/5)6 |
|||
5 |
M[X] |
3.3 |
5.9 |
3.05 |
4.25 |
8.55 |
||
D[X] |
5.31 |
8.59 |
7.4475 |
6.488 |
4.548 |
|||
6 |
C |
3.12 (81/26) |
64/15 |
5.2 |
128/21 |
896/127 (7.055) |
||
M[X] |
1.3846 (18/13) |
56/45 |
1.2 |
1.181 |
1.157 |
|||
D[X] |
0.159 (27/13) |
0.0624 (0.54) |
0.042 |
0.646 |
0.0271 |
|||
p |
0.909 |
0.856 |
0.91 (0.8963) |
1 |
0. (1) |
|||
F(x) |
(27/26) (1-1/x3) |
(16/15)(1-1/x4) |
1.04(1-1/x5) |
1.016(1-1/x6) |
(128/127)(1-1/x7) |
|||
7 |
g(y) |
2/ (3.14(1-y2)1/2), [0,1] |
Y/2, [0,2] |
0.8y, [0,1) 0.4y, [1,2] |
Exp(y), [0,0.693] |
0.47y3, [0,1) 0.235y3, [1,2] |
||
8 |
0.159 |
-0.159 |
-0.0867 |
-0.064 |
-0.129 |
|||
C, Mx, My |
1/10; 4.4; 0.8 |
1/10; 3.6; 0.8 |
1/8; 3.08; 0.791 |
1/7.5; 2.9; 0.8 |
1/9; 3.33; 0.796 |
|||
Dx,Dy,Kxy |
2.91; 0.293; 0.147 |
2.91; 0.293; -0.146 |
1.99; 0.29; -0.066 |
1.648;0.304;-0.46 |
2.389; 0.29; -0.108 |