Обчислить нужнопомогите, с.р на пн!!срочно, даю 35 балов

Ответ

Автор - Jessuss

Ответ:

$8^{ - 3} = (frac{1}{8})^{3} = frac{1}{512}$

$( frac{1} {5})^{ - 3} ={5}^{3} = 125$

$( - 4)^{ - 2} = (- frac{1}{4})^{2} = frac{1}{16}$

$(9 frac{2}{7})^{0} = 1$

$( frac{5}{9})^{ - 4} div ( frac{5}{9})^{ - 6} =( frac{5}{9} )^{ - 4 - ( - 6)} = ( frac{5}{9})^{2} = frac{25}{81}$

$( - 15)^{ - 1} = - frac{1}{15}$

$(0.6)^{ - 2} = (frac{6}{10})^{ - 2} = ( frac{10}{6})^{2} = frac{100}{36} = frac{25}{9} = 2 frac{7}{9}$

$(1 frac{1}{7} )^{ - 2} = (frac{8}{7})^{ - 2} = ( frac{7}{8})^{2} = frac{49}{64}$

$8^{ - 8} times 8^{6} = 8^{ - 8 + 6} = 8^{ - 2} = ( frac{1}{8})^{2} = frac{1}{64}$

10.

$5^{ - 3} div 5^{ - 4} = 5^{ - 3 - ( - 4)} = 5^{1} = 5$

11.

$(( frac{1}{2})^{ - 2})^{ - 1} = ( frac{1}{2})^{ - 2 times ( - 1)} = (frac{1}{2})^{2} = frac{1}{4} = 0.25$

12.

$(0.3)^{ - 3} = ( frac{3}{10})^{ - 3} = ( frac{10}{3})^{3} = frac{1000}{27} = 37 frac{1}{27}$