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Let z=x+iy, where x and y are real. The ...

Let `z=x+iy`, where x and y are real. The points (x,y) in the xy-plane of which `(z+1)/(z-1)` is purely imaginary, lie on

A

a straight line

B

an ellipse

C

a hyperbola

D

a circle

Text Solution

Verified by Experts

The correct Answer is:
D
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