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If int (dx)/(1- sin ^(4)x )= a tan x +b ...

If `int (dx)/(1- sin ^(4)x )= a tan x +b tan ^(-1) (c tan x )+ D, ` then:

A

`a =1/2`

B

`b =sqrt2`

C

`c=sqrt2`

D

`b =(1)/(2sqrt2)`

Text Solution

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The correct Answer is:
A, C
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