State the expression involving the coefficients of the pair of linear equations and…

MATHEMATICS · Subjective · CBSE · Mathematics · Pair of Linear Equations in Two Variables · Pair of Linear Equations in Two Variables

Problem

State the expression involving the coefficients

a_1, b_1, a_2, b_2

of the pair of linear equations

a_1x + b_1y + c_1 = 0

and

a_2x + b_2y + c_2 = 0

whose non-zero value guarantees that the pair has a unique solution.