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int(0)^(pi//4) sqrt(1 -sin 2x dx) is equ...

`int_(0)^(pi//4) sqrt(1 -sin 2x dx)` is equal to :

A

`2sqrt2`

B

`2(sqrt2+1)`

C

2

D

`2(sqrt2-1)`

Text Solution

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The correct Answer is:
D
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HIMALAYA PUBLICATION-Definite Integrals and its Application-QUESTION BANK
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  11. The value of int0^(1) tan^(-1) ((2x-1)/(1+x-x^(2))) dx is

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  17. lim(n rarr oo) sum(r=1)^(n) 1/n sec^(2) ((rpi)/(4n)) =

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  18. lim(n rarr oo)1/nsum(r=1)^(n) sqrt(r/n) =

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  19. lim(n rarr oo) 1/n[sin(pi/(2n))+sin(pi/n)+sin((3pi)/2n)+........+sin(p...

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  20. The area between the curves y=2x-x^(2) and the x-axis is

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