If (x^(4) - 2x^(2)y^(2) + y^(4))^(a-1) =...

If `(x^(4) - 2x^(2)y^(2) + y^(4))^(a-1) =(x-y)^(2a) (x+y)^(-2)`, then the value of a is:

A

`(x^2-y^2)`

B

`(x-y)/(x+y)`

C

`log(x+y)/(log(x-y)`

D

`log(x-y)/(log(x+y)`

Verified by Experts

The correct Answer is:

D

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