Question

b^-7 * (b^5) при b=4

Answer 1

$b^{-7} * b^{5} = b^{-7+5} = b^{-2} = \frac{1}{b^2} \\b=4$

$\frac{1}{b^2}= \frac{1}{16}=0,0625$

Answer 2

Ответ:

b^-7 * (b^5)

b^-7 +^5

b^-2

b^-2=4^-2=1/16

Ответ:1/16 или 0,0625