Question

помогите пожалуйста срочно надо

Answer 1

${7}^{ - 3} = ( \frac{1}{7} )^{3} > 0$
${1.6}^{ - 4} = (1 \frac{6}{10})^{ - 4} = (1 \frac{3}{5})^{ - 4} = \\ = ( \frac{8}{5})^{ - 4} = (\frac{5}{8})^{ 4} > 0$
${( - 3.2)}^{ - 2} = {( - 3 \frac{2}{10}) }^{ - 2} = \\ = {( - 3 \frac{1}{5}) }^{ - 2} = {( - \frac{16}{5}) }^{ - 2} = \\ = {( - \frac{5}{16}) }^{ 2} = {( \frac{5}{16}) }^{2} > 0$
${( - 6.1)}^{ - 5} = {( - \frac{61}{10} )}^{ - 5} = \\ = { ( - \frac{10}{61} )}^{5} = - ( { \frac{10}{61} })^{5} < 0$