Question

If $x=4$, evaluate:
(iii) $\frac{x^2}{2}$

Answer 1

Given: $\frac{x^2}{2}$
Subatituting $x=4$ in the given expression
$\frac{x^2}{2}=\frac{(4{)}^2}{2}$
$=\frac{16}{2}$
$=8$
Hence, the value of $\frac{x^2}{2}$for $x=4$ is $8$ .