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The Integral int(pi/4)^((3pi)/4)(dx)/(1+...

The Integral `int_(pi/4)^((3pi)/4)(dx)/(1+cosx)` is equal to: (2) (3) (4)

A

`-2`

B

2

C

4

D

-1

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The correct Answer is:
B
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RESONANCE ENGLISH-DEFINITE INTEGRATION & ITS APPLICATION -Exercise 3 Part - II
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  5. If g(x) = int(0)^(x) cost dt, then g(x+pi) equals

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  7. The area (in square units) bounded by the curves y=sqrt(x),2y-x+3=0, x...

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  11. The area (in sq. units) of the region described by {x,y):y^(2)le2x and...

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  12. The area (in sq. units) of the region {(x,y):y^(2) le 2x and x^(2)...

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  13. lim(n -> oo) (((n+1)(n+2)(n+3).......2n) / n^(2n))^(1/n)is equal to

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  14. The area (in sq. units) of the region {(x,y):xge0,x+yle3,x^(2) le4y} a...

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  16. The value of int(-pi//2)^(pi//2)(sin^(2)x)/(1+2^(x))dx is

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  17. "Let "f(x)=cos x^(2),f(x)-sqrt(x), and alpha, beta (alphaltbeta) be th...

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  19. The value of underset(-pi//2)overset(pi//2)intdx/([x]+[sinx]+4) where ...

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  20. The integral underset1overseteint{(x/e)^(2x)-(e/x)^x}logexdx is equal ...

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