Mathematics · essential
Condition of collinearity of three points for JEE
Distance formula, sections formula, locus and its equation
Formula
\(x_1(y_2-y_3)+x_2(y_3-y_1)+x_3(y_1-y_2)=0\)
Variables: Three points \((x_1,y_1),(x_2,y_2),(x_3,y_3)\).
Line verification, concurrency, locus.