Integration Problems - Uniservepages.pacificcoast.net/~cazelais/260/int-prob.pdf · Integration...
Transcript of Integration Problems - Uniservepages.pacificcoast.net/~cazelais/260/int-prob.pdf · Integration...
Integration Problems
1.∫(2x3 + 5x + 1)e2x dx 2.
∫cos2 x tan2 x dx
3.∫
ecos 2x sin x cos x dx 4.∫
sec2 x
2 + tan xdx
5.∫
x2 − 1x + 3
dx 6.∫
sin4 x dx
7.∫
ex
√3 − e2x
dx 8.∫
x3
√4 + x2
dx
9.∫
1√x(1 + 3
√x)
dx 10.∫
x3 + 2x2 + 3x + 4x3 + 4x
dx
11.∫ √
9 − x2 dx 12.∫
x3 ln x dx
13.∫
dx√6x − x2
14.∫π/4
0sec x tan3 x dx
15.∫(sin x + cos x)2 sin x dx 16.
∫1
1 + cos xdx
17.∫
e2x
4 + e2xdx 18.
∫4
x2 + 2x + 10dx
19.∫
cos(4x)√
1 + sin(4x) dx 20.∫
1e−x + ex
dx
21.∫
e2x cos x dx 22.∫
cot6 x csc4 x dx
23.∫
x√4 + x2
dx 24.∫
1 − sin x
cos xdx
25.∫
1x2√
1 + 4x2dx 26.
∫ √2x − x2 dx
27.∫
dx
x√
ln x28.
∫e√
x dx
29.∫
x + 1x2 − 4
dx 30.∫
x2 + x + 1(x + 1)2(x − 2)
dx
Gilles Cazelais. Typeset with LATEX on April 23, 2006.
Answers
1. e2x(x3 − 32x2 + 4x − 3
2) + C 2. x2 − 1
4 sin 2x + C
3. −14ecos 2x + C 4. ln |2 + tan x| + C
5. x2
2 − 3x + 8 ln |x + 3| + C 6. 14(3x
2 − sin 2x + 18 sin 4x) + C
7. arcsin(
ex√
3
)+ C 8. 1
3(x2 + 4)3/2 − 4(x2 + 4)1/2 + C
9. 23 ln |1 + 3
√x| + C 10. x + ln |x| + 1
2 ln |x2 + 4| − 12 arctan
(x2
)+ C
11. 12x√
9 − x2 + 92 arcsin
(x3
)+ C 12. 1
4x4 ln x − 116x4 + C
13. arcsin(
x−33
)+ C 14. 2−
√2
3
15. 23 sin3 x − cos x + C 16. csc x − cot x + C
17. 12 ln(4 + e2x) + C 18. 4
3 arctan(
x+13
)+ C
19. 16(1 + sin 4x)3/2 + C 20. arctan(ex) + C
21. 25e2x cos x + 1
5e2x sin x + C 22. −( cot9 x9 + cot7 x
7 ) + C
23.√
4 + x2 + C 24. ln∣∣ sec x+tan x
sec x
∣∣ + C
25. −
√1 + 4 x2
x+ C 26. −1
2(x − 1)√
2x − x2 + 12 arcsin(x − 1) + C
27. 2√
ln x + C 28. 2e√
x(√
x − 1) + C
29. 34 ln |x − 2| + 1
4 ln |x + 2| + C 30. 13(x+1)
+ 29 ln |x + 1| + 7
9 ln |x − 2| + C