If (x+yi)^frac{1}{3} = u+vi, where u,v,x...

If `(x+yi)^frac{1}{3} = u+vi`, where u,v,x,y in R,then

A

`frac{x}{u} + frac{y}{u} = 4(u^2-v^2)`

B

`frac{x}{u} - frac{y}{v} = 4(u^2-v^2)`

C

`frac{x}{u}+frac{y}{v} = 4(u^2+v^2)`

D

`frac{x}{u} - frac{y}{v} = 4(u^2+v^2)`

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