Question

The value of $(-3{)}^{-4}$ is

(a)12

(b)81

$\left(c\right)-\frac{1}{12}$

$\left(d\right)\frac{1}{81}$

Answer 1

$(-3{)}^{-4}={\left(\frac{1}{-3}\right)}^4=\frac{1}{(-3)\times (-3)\times (-3)\times (-3)}$

$=\frac{1}{81}$