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If int(cosx)/(9-cos^(2)x)dx=m.tan^(-1)[m...

If `int(cosx)/(9-cos^(2)x)dx=m.tan^(-1)[m.f(x)]+c,` then

A

`m=2sqrt2, f(x)=cosx`

B

`m=(1)/(2sqrt2), f(x)=sinx`

C

`m=(1)/(2)sqrt2, f(x)=cosx`

D

`m=2sqrt2, f(x)=sinx`

Text Solution

Verified by Experts

The correct Answer is:
B
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