Question

помогите пожалуйста

Answer 1

Ответ:

${5}^{ - 2} = \frac{1}{ {5}^{2} } = \frac{1}{25} \\ \\ {( \frac{1}{3} )}^{ - 3} = {3}^{3} = 27 \\ \\ {( - 4)}^{ - 1} = - \frac{1}{4}$

$\\ {( 1 \frac{1}{3}) }^{ - 2} = { (\frac{4}{3}) }^{ - 2} = \frac{ {3}^{2} }{ {4}^{2} } = \frac{9}{16} \\ \\ {( - \frac{1}{2} )}^{ - 5} = - \frac{ {2}^{5} }{ {1}^{5} } = - 32$

${(2 \frac{1}{7}) }^{ - 1} = {( \frac{15}{7} )}^{ - 1} = \frac{7}{15}$