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Evaluate: intsqrt(1+sinx)dx ,0...

Evaluate: `intsqrt(1+sinx)dx ,0

A

`(1)/(2)(sin(x)/(2)-cos(x)/(2))+c`

B

`(1)/(2)(sin(x)/(2)+cos(x)/(2))+c`

C

`2sqrt(1+sinx)+c`

D

`-2sqrt(1-sinx)+c`

Text Solution

Verified by Experts

The correct Answer is:
D

`intsqrt(1+sinx)dx=intsqrt((sin(x)/(2)+cos(x)/(2))^(2))dx`
`=intsin(x)/(2)dx+intcos(x)/(2)dx=-2cos(x)/(2)+2sin(x)/(2)+c`
`=-2(cos(x)/(2)-sin(x)/(2))+c=-2sqrt((1-sinx))+c`
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