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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

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

D

`x-iy`

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The correct Answer is:
D
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