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If z1 and z2 are two complex number such...

If `z_1 and z_2` are two complex number such that `|(z_1-z_2)/(z_1+z_2)|=1`, Prove that `iz_1/z_2=k` where k is a real number Find the angle between the lines from the origin to the points `z_1 + z_2` and `z_1-z_2` in terms of k

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