Mathematics · important

Collinearity condition in Argand plane for JEE

Argand diagram

Formula

\(z_1,z_2,z_3\text{ are collinear }\iff \dfrac{z_1-z_3}{z_2-z_3}\in\mathbb R\)

Variables: \(z_1,z_2,z_3\in\mathbb C\)

Conditions: \(z_2\neq z_3\)

Straight line and geometry problems in complex plane.

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