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If int sqrt(2) sqrt(1+ sinx) dx = -4 cos...

If `int sqrt(2) sqrt(1+ sinx) dx = -4 cos(ax + b) + C` then the value of (a,b) is :

A

`(1/2, pi/4)`

B

`(1, pi/2)`

C

(1,1)

D

None of these

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The correct Answer is:
A
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