If sqrt(a+ib) = x+iy then possible value...

If `sqrt(a+ib) = x+iy` then possible value of `sqrt(a-ib)` is

A

`x^2 +y^2`

B

`sqrt(x^2+y^2)`

C

`x+iy`

D

`x-iy`

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The correct Answer is:

D

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