Question

Question 4(ii)
Find the multiplicative inverse of the following:
$\frac{-13}{19}$

Answer 1

We know that multiplicative inverse of a rational number a is $\left(\frac{1}{a}\right),suchthata\times \frac{1}{a}=1$.
Multiplicative inverse of $\frac{-13}{19}$ is $\frac{-19}{13}$.