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УПРАЖНЕНИЯ<br />

Вычислить интегралы:<br />

COS4 X<br />

1.<br />

-dx. Отв. —<br />

sin2 X<br />

cos3x 3x 3sin2x<br />

sin x 4<br />

C.<br />

2.<br />

sin4 xdx<br />

cos3 x<br />

Отв.<br />

sin3x<br />

2 cos2x 2<br />

3 sinx<br />

cosr,x<br />

sin'x<br />

dx. О т в .-------^-------2 sin x + — sin3 x + C.<br />

sinx 3<br />

4.<br />

sinr>X<br />

-dx.<br />

cos3 x<br />

Отв. 2 ln Icos x j -f-<br />

2 cos2x<br />

cos2x + C.<br />

5.<br />

dx<br />

sin2xcos3x<br />

sin X<br />

------------1----- 1 I 3 In<br />

2 cos2x sinx 2<br />

G.<br />

7.<br />

dx<br />

О тв.------ clg2x + 3 ln !tg x I +<br />

)sin3xcos5x 2 ' 2<br />

+ 1 tg4x + C.<br />

4<br />

dx. Отв. — tg7 x + C.<br />

cos8x 7<br />

tg2x<br />

8 .<br />

sin4X<br />

sin3 x , 3 sin 2x<br />

dx. Отв.-----n x ,<br />

+ C.<br />

cos2 x 2 cos x<br />

9. \ tg5xefx. О т в .-------ig2x -|------tg4x — ln |c o sx | + C.<br />

J 2 4<br />

10. tg3 xdx. Отв. — -i- ctg3 x + ctg x + x + C.<br />

dx ~ 1 cosx , 3 ,<br />

-. Отв. ------- — ------------- h — ln<br />

cosx 2 sin x 2<br />

tg + C.<br />

1 2 .<br />

dx<br />

sin-1x<br />

Отв.<br />

cosx . I ,<br />

------------- 1----- ln<br />

2 sin2 x 2<br />

tg -j- c.<br />

3 1 5

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