JEE Mains Model Paper 3

© examsiri.com

Question : 17 of 90

Marks: +1, -0

If

d

dx

{cos−1(

1−x

1+x

)} =

1

f(x){1+f2(x)}

then ∫

d{f2(x)}

f(x)+f2(x)

=

2log |1 + f2(x)| + c
2 log |1 + f(x)| + c
log |1 + f(x)| + c
none

Go to Question:

Prev Question

Next Question