Question

Помогите пожалуйста
$\frac{a {}^{5} \times a {}^{ - 8} }{a ^{ - 2} }$
При 6
$\frac{c {}^{7} \times c {}^{ - 3} }{c {}^{6} }$
При 4

Answer 1

$1. \ \frac{a^5 \cdot a^-^8}{a^-^2} = \frac{a^-^3}{a^-^2} = a^-^1 \\ \\ a^-^1 = 6^-^1 = \frac{1}{6} \\ \\ 2. \ \frac{c^7 \cdot c^-^3}{c^6} = \frac{c^4}{c^6} = \frac{1}{c^2} \\ \\ \frac{1}{c^2} = \frac{1}{4^2} = \frac{1}{16}$