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If x,y,a,b,c,d are real and x+iy= sqrt((...

If x,y,a,b,c,d are real and `x+iy= sqrt((a+ib)/(c+id))" then "(x^(2)+y^(2))^(2)=`

A

`(a^(2)+b^(2))/(c^(2)+d^(2))`

B

`(a^(2)-b^(2))/(c^(2)-d^(2))`

C

`(a^(2)-c^(2))/(b^(2)-d^(2))`

D

`(a^(2)+b^(2))/((c+d)^2)`

Text Solution

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The correct Answer is:
A
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