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If P and Q are represented by the comple...

If `P and Q` are represented by the complex numbers `z_1 and z_2` such that `|1/z_2+1/z_1|=|1/(z_2)-1/z_1|` , then a) `O P Q(w h e r eO)` is the origin of equilateral `O P Q` is right angled. b) the circumcenter of ` O P Q is 1/2(z_1+z_2)` c) the circumcenter of ` O P Q is 1/3(z_1+z_2)`

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