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When (z+i)/(z+2) is purely imaginary, th...

When `(z+i)/(z+2)` is purely imaginary, the locus described by the point `z`in the argand diagram is

A

Circle of radius `sqrt5/2`

B

Circle of radius `5/4`

C

Straight line

D

Parabola

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The correct Answer is:
A
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