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intsqrt(2+sqrt(2+sqrt(2+2cos8x)))dx=...

`intsqrt(2+sqrt(2+sqrt(2+2cos8x)))dx=`

A

`2cosx+c`

B

`2sec^(2)x+c`

C

`2sinx+c`

D

`sqrt(2sinx)+c`

Text Solution

Verified by Experts

The correct Answer is:
C
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