212●–3/5 |Cos(2arcctg ½)|

212●(–7π/12+πk;π/6+2πk)

212●(–7π/12+πk; π/12+πk),k*Z |sin2x<1/2|

212●(π/6+2πk; 5π/6+2πк) |cos(π/2–x)>1/2|

212●1

212●–√2;√2

212●[4; ∞)

212●2 | sinα+cosα)²+1–2sinα. |

212●π+2πn, (-1)ⁿπ/6+πn,nεz

212●–4;3

212●(1/2; 8)

212●(12; +∞)

212●(–∞; +∞) |у=cos 2x/1+x²|

212●5 √2x–1=x–2

212●(–1)n π/12+π/2n, n*Z |2sinx cosx=1/2|

212●5/6

212●5/6 |2 ∫ 1 (x²–x)dx|

212●π/3+4πn≤x≤5π/3+4πn,n*Z |sin x/2≥1/2|

212●3 |2 ∫ –1 x² dx|

212●3 log(2^x+1)=2

212●π/2+2πn,n*Z (–1)k+1 π/6+πk,k*Z

|sin2x/1+sinx=–2cosx.|

212●II,I–a,IV у=sin(2x+1)–2, y=sinx

2120●π+2πn,n*Z {cos²x+1+2cosx=0

2120●6•1/5 π {y=x²,x=1,x=2,y=0

2120●(–1;1).

2120●[2;∞) (√х–2•(х+1)/2х≥0)

212003912023100772526●0

212005●у=24х+16

21202●35

212022●(-4;3)

212044135●–6

21205●у=24х+16

212050●(0; 1)

2120542205●6/x

21206●–3/4 |sin2α, sinα+cosα=1/2, 0<α<π/6|

2121●1

2121●±π/3+2πn

2121●1/sin²α

2121●tg α/2 |cos2α/1+cos2α•cosα/1+cosα|

2121●–4/(2x–1)² |f(x)=2x+1/2x–1|

2121●u=√2x–1 | ∫e√2x–1/√2x–1 dx|

21210●(–1)n π/6+πn; n*z

21210●1/2<m<1 или m>5

21210●{1;1/2}

212113122●{1/2,1}

21212●0 |sin²x/1+cosx–cos²x/1+sinx+cos2x/sinx+cosx|

21212●√c+√d/√c–√d

21212●πс+πd/πc–πd

21212●(-1)к+1π/12+π/2к,кεz

21212●–8/25.

212121●1/2е2x–1+x³/3+11/24.

21221227132●12+√21

212121122●1/a+b

2121212●(x²–x–1)(y–z–10)

2121212121211●2m²/m²+1

21212121211●2m²/m²+1

212122454414●4

2121212414341●3/4

212122454434●8

212125●{–1} |х²+1/х+х/х²+1=–2,5|

212129●1/2; 2

21212931472●1/2

212129872●1/2.

21213●7

212132●1.

212132●1;1

2121327●–1<х<2

2121327●–1 | 2^1+log2(x+1)>x•log327 |

21214129872●1/2

212141813●21/220

21215●(-∞;0)U(1;+∞)

2121533425●3,5

212181●0<х≤√2·;х>8

2122●=a+b/ a-b

2122●0

2122●16

2122●25/4 {(2 ½)²

212201●y=2x-3

2122200●0.

212220●x=2π(1+2k),k*Z

21222033●3π/4

21221●(1,6; 0,8)

21221●1/2e 2x–1+x³/3+11/24

21221●2(x+1)/(1–x)³

21221111●1–a/√a

212212●12+√84

212212●–1;0

212212212212●tg1.

21221227132●12+√84.

21221227152●14+√140.

2122132●Нет решения

2122142●Нет решении

2122142●(8; ¼) | {log2x+1/2log2 1/y=4 xy=2 |

2122156●x=4

212220●x=2π(1+2k),k*z

212220●(-4;3)

212220●0 |y=(2x+1)² жане y=(x+2)², x0=?|

2122200●0

21222033●3π/4

212221013670366173231734●2

2122211●(–1;–3);(4,5; 8)

21222234●1

212223●7/8

21222341324●x<1/5

21223●р=–5; q=6

21223●Шешими Жок

212232●15,25

212232●π/3(3k+1),k*Z

212234●(–1)k+1 π/3+kπ,k*Z

212240●4

212243648607284●1/64

2122512●√3+2/2

2122737●Унаиб=0;Унаим=–9

212275●х=5

212282273362●(3q²–4x²)(7p–9q)

2123●π/6+π/2k k*Z

2123●π/9+πn/3,n*Z {tgx+tg2x/1–tgx·tg2x=√3

2123●30км

212310●{–2,–1,0}

2123114●6.

212317●о/////

2123172●(3;1)

21232●–25 |f(x)=(x²–1)(2–3x) в точке х=2|

2123212123●–2a³

2123216●–1±√5/2. |2 ∫ 1(y²+y–3)dy=x²+x–1/6|

2123267522100●3

2123296●–1

21234●13,5 | 2 ∫ 1 (2x³+4x)dx |

212343●a=2 2/3 или а=–2

21235●[1;4]

21235620●5; 7

21239600●(0; 1/7)

212421210●[1;11]

2124240●6

2124630●12500 кг

21243611141●–1.

212510●2 {2√х–1–√х+2=√5х–10

2128●60; 15