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The value of I=int(0)^(pi//2) (1)/(1+cos...

The value of `I=int_(0)^(pi//2) (1)/(1+cosx)dx` is

A

`(pi)/(4)`

B

`(pi)/(2)`

C

1

D

`pi`

Text Solution

Verified by Experts

The correct Answer is:
C
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OBJECTIVE RD SHARMA-DEFINITE INTEGRALS-Exercise
  1. The value of int(-pi//2)^(pi//2)(x^(2)+x cosx+tan^(5)x+1)dx is equal t...

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  2. If int(-1)^(4) f(x)=4 and int(2)^(7) (3-f(x))dx=7, then the value of i...

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  3. The value of I=int(0)^(pi//2) (1)/(1+cosx)dx is

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  4. int(0)^(pi//2) (sin^(2)x)/(sinx+cosx)dxis equal to

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  5. The value of the integral int(a)^(b) (|x|)/(x)dx, a lt b is

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  6. The value of the integral int(0)^(2pi)(sin2 theta)/(a-b cos theta)d ...

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  7. The value of the integral int(0)^(1) x(1-x)^(n)dx, is

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  8. The value of the integral int(0)^(3alpha) cosec (x-alpha)cosec(x-2al...

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  9. The value of the integral int(0)^(pi) (sin k x)/(sin x)dx (k is an eve...

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  10. The value of the integral int(0)^(1)(1)/(x^(2)+2x cos alpha+1)dxis equ...

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  11. The greater value of F(x)=int(1)^(x) |t|dt on the interval [-1//2,1//2...

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  12. The value of the integral int(0)^(pi//2) |sin x-cos x|dx, is

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  13. The value of the integral int(0)^(pi//4) sin^(-4)x dx, is

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  14. The value of the integral I=int(1)^(oo) (x^(2)-2)/(x^(3)sqrt(x^(2)-1))...

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  15. int(0)^(1) |sin 2pi x|dx id equal to

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  16. The value of integral int(-pi)^(pi) (cos ax-sin b x)^(2)dx, where (a a...

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  17. The value of the definite integral int(0)^(1)(1+e^(-x^(2))) dx is

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  18. If I=int(-pi)^(pi) (sin^(2))/(1+a^(x))dx, a gt 0, then I equals

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  19. If n is an odd natural number, then int(-pi//6)^(pi//6) (pi+4x^(n))/...

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  20. If I(1)=int(0)^(x) e^("zx "e^(-z^(2)))dz and I(2)=int(0)^(x) e^(-z^(2)...

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