Question

Вычислите: 2^-6*4^-3 / 8^-7

Answer 1

$\frac{2^{-6}*4^{-3} }{8^{-7}}= \frac{2^{-6}*(2^{2}) ^{-3} }{ (2^{3})^{-7}}= \frac{2^{-6}* 2^{-6}}{2^{-21}} = 2^{-12}*2^{21}= 2^{-12+21}= 2^{9}=512$