0" alt=" {7}^{ - 3} = ( \frac{1}{7} )^{3} > 0" align="absmiddle" class="latex-formula">
0" alt=" {1.6}^{ - 4} = (1 \frac{6}{10})^{ - 4} = (1 \frac{3}{5})^{ - 4} = \\ = ( \frac{8}{5})^{ - 4} = (\frac{5}{8})^{ 4} > 0" align="absmiddle" class="latex-formula">
0" alt=" {( - 3.2)}^{ - 2} = {( - 3 \frac{2}{10}) }^{ - 2} = \\ = {( - 3 \frac{1}{5}) }^{ - 2} = {( - \frac{16}{5}) }^{ - 2} = \\ = {( - \frac{5}{16}) }^{ 2} = {( \frac{5}{16}) }^{2} > 0" align="absmiddle" class="latex-formula">
