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If int cosex 2x dx = f(g(x)) + c , then...

If `int cosex 2x dx = f(g(x)) + c ` , then

A

`f(g'(x)) = (1//2) log |sec^2 x|`

B

`g(f'(x)) = tan (1//2x)`

C

Both (a) and (b)

D

none of these

Text Solution

Verified by Experts

The correct Answer is:
C
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