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The value of int(-pi//2)^(pi//2)(1)/(e^(...

The value of `int_(-pi//2)^(pi//2)(1)/(e^(sinx)+1) dx` is equal to

A

0

B

1

C

`-(pi)/2`

D

`(pi)/2`

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The correct Answer is:
D
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TARGET PUBLICATION-DEFINITE INTEGRALS-COMPETITIVE THINKING
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  9. Let I(1) =int(a)^(pi-a)xf(sinx)dx,I(2)=int(a)^(pi-a)f(sinx)dx, then I(...

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  10. If f(x)=(e^(2))/(1+e^(x)),I(1)=overset(f(a))underset(f(-a))int xg{x(1-...

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  11. Q. int0^pi(e^(cos^2x)( cos^3(2n+1) x dx, n in I

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  13. If I(1)=int(0)^(pi//2)f(sin2x)sin x dx and I(2)=int(0)^(pi//4)f(cos2x)...

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  19. Evaluate the following : int(-pi//2)^(pi//2)log((2-sinx)/(2+sinx))d...

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  20. To find the numberical value of overset(2)underset(-2)int (px^(3)+qx+8...

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