In the cross-multiplication formula, the expression $a_1 b_2 - a_2 b_1$ appears as —

Question

Accepted Answer

denominator of $x$, $y$, and $1$

Answer

denominator of $x$ only

Answer

denominator of $y$ only

Answer

denominator of $1$ only

In the cross-multiplication formula, the expression a1b2−a2b1a_1 b_2 - a_2 b_1a1​b2​−a2​b1​ appears as —