Let \( z \) be such that is equidistant from three distinct points \( z_{1} \), \( z_{2}, z_{3} ... VIDEO
Let \( z \) be such that is equidistant from three distinct points \( z_{1} \), \( z_{2}, z_{3} \) in the Argand plane. If \( z, z_{1} \) and \( z_{2} \) are collinear, then find the \( \arg \left(\left(z_{3}-z_{2}\right) /\left(z_{3}-z_{1}\right)\right),\left(z_{1}, z_{2}, z_{3}\right. \) are in anti-clockwise sence)?
(a) \( \pi / 2 \)
(b) 0
(c) \( -\pi / 2 \)
(d) \( \pi \)
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