If y=(sqrt(1-sin4x)+1)/(sqrt(1+sin 4x)-1...

If `y=(sqrt(1-sin4x)+1)/(sqrt(1+sin 4x)-1)`, then y can be

A

cotx

B

`-tan x`

C

`- cot ((pi )/( 4) +x)`

D

`tan ((pi )/( 4) +x)`

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The correct Answer is:

A, B, C, D

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