Q 1113867740.     `int(sqrt((a+x)/(a-x))+sqrt((a-x)/(a+x)))dx=`

EAMCET 2011
A

`2sin^(-1)(x/a)+C`

B

`2asin^(-1)(x/a)+C`

C

`2cos^(-1)(x/a)+C`

D

`2acos^(-1)(x/a)+C`

HINT

Put `x=acos2t=>dx=-2asin2tdt`

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