Question

Determine.

1. $\frac{5}{10}^{-2}$

2. $\frac{5}{10}^{-1}$

3. $0,2^{-1}$

Answer 1

           $( \frac{5}{10}) ^{-2} = \frac{1}{(\frac{5}{10} )^2} = (\frac{10}{5})^2= 2^2 = 4 \\ \\ (\frac{5}{10}) ^{-1} = \frac{10}{5}=2 \\ \\ (0,2) ^{-1}= ( \frac{2}{10}) ^{-1} = \frac{10}{2} =5$