Question

Solve: ${\left(\right(0.6{)}^2)}^0-{\left(\right(4.5{)}^0)}^{-2}$

Answer 1

Given : $\left(\right(0.6{)}^2{)}^0-\left(\right(4.5{)}^0{)}^{-2}$

Let $a=\left(\right(0.6{)}^2{)}^0-\left(\right(4.5{)}^0{)}^{-2}$

$=(0.6{)}^0-(4.5{)}^0\dots \left(\right(a^m{)}^n=a^{m\times n})$

$a=1-1=0$

$\therefore \left(\right(0.6{)}^2{)}^0-\left(\right(4.5{)}^0{)}^{-2}=0$