1.

Solve the followings : [(x + 1/y)^a (x - 1/y)^b] div [(y + 1/x)^a (y - 1/x)^b] is equal to :

Answer»

`(x/y)^(a + B)`
`(y/x)^((a+b))`
`(x^a)/(y^b)`
`(XY)^(a+b)`

ANSWER :A


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