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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

`-tan A`

B

`cot A`

C

`tan (pi/4 + A)`

D

`-cot (pi/4 + A)`

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The correct Answer is:
A, B, C, D
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