If P(x, y) denotes z=x+i y in Argand's ...

If P(x, y) denotes `z=x+i y` in Argand's plane and `|(z-1)/(z+2 i)|=1`, then the locus of `P ` is/an

A

Hyperbola

B

Ellipse

C

Circle

D

Strainght line

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The correct Answer is:

D

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