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If tan^(4)x+tan^(4)y+2cot^(2)xcot^(2)y=3...

If `tan^(4)x+tan^(4)y+2cot^(2)xcot^(2)y=3+sin^(2)(x+y)` then

A

`x=y=n pi +-(pi)/6, n in Z`

B

`x=y=npi +-(pi)/4, n in Z`

C

`x=y=n pi +-(pi)/3, n in Z`

D

`x=y=npi +-(pi)/2, nin Z`

Text Solution

Verified by Experts

The correct Answer is:
B
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