Question

Question 1

$\left[\right(-3{)}^2{]}^3$ is equal to
(a) $(-3{)}^8$
(b) $(-3{)}^6$
(c) $(-3{)}^5$
(d) $(-3{)}^{23}$

Answer 1

We know that, if 'a' is a rational number, m and n are natural numbers, then
$(a^m{)}^n=a^{m\times n}So,[(-3{)}^2{]}^3=(-3{)}^{2\times 3}=(-3{)}^6$