Question

Simplify { (1/3)^-2 - (1/2)^-3 }​

Answer 1

Step-by-step explanation:

(1/3)^-2 = 3^2 = 9

(1/2)^-3 = 2^3 = 8

9-8=1

Answer 2

$( \frac{1}{3} )^{ - 2} - (\frac{1}{2})^{ - 3}$

As per laws of indices...

${a}^{2} = ( \frac{1}{a} )^{ - 2}$

Therefore

$= {3}^{2} - {2}^{3}$

$= 9 - 8$

$= 1$