Question

Question 108(iv)
Verify the property $x\times y=y\times x$ of rational numbers by using
$x=\frac{-3}{8}$ and $y=\frac{-4}{9}$

Answer 1

Given, $x=\frac{-3}{8}$ and $y=\frac{-4}{9}$

Then,
$LHS=x\times y=\frac{-3}{8}\times \frac{-4}{9}=\frac{1}{3\times 2}=\frac{1}{6}$

$RHS=y\times x=\frac{-4}{9}\times \frac{-3}{8}=\frac{1}{6}$

$\therefore LHS=RHS\Rightarrow x\times y=y\times x$

Hence verified.