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int (d[f^(2)(x)])/(f(x)+f^2(x)=...

`int (d[f^(2)(x)])/(f(x)+f^2(x)=`

A

`2 log [1+f^(2)(x)]`

B

2 log (1+f(x))

C

log (1+f(x))

D

`log (1+f^(2)(x)))`

Text Solution

Verified by Experts

The correct Answer is:
B
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