Question

Evaluate the following expression. 1/5^-2 Evaluate 6^-3

Answer 1

1/5^-2 = 5^2 so this equals

 = 25

Answer 2

$( \frac{1}{5}) ^{-2} = ( \frac{5}{1} )^{2} = 5^{2} = 25 \\ \\ 6^{-3} = ( \frac{6}{1} )^{-3} = ( \frac{1}{6} )^{3} = \frac{ 1^{3} }{ 6^{3} } = \frac{1}{216}$