283° Вправа 283Алгебра 8 клас Тарасенкова 2025 · § 8 · стор. 84

283. Подайте степінь як дріб:

${\displaystyle a^{-n}=}$${\displaystyle \frac{1}{a^n}}$.

1) ${\displaystyle a^{-8}=}$${\displaystyle \frac{1}{a^8}}$;

2) ${\displaystyle c^{-3}=}$${\displaystyle \frac{1}{c^3}}$;

3) ${\displaystyle m^{-5}=}$${\displaystyle \frac{1}{m^5}}$;

4) ${\displaystyle n^{-8}=}$${\displaystyle \frac{1}{n^8}}$;

5) ${\displaystyle b^{-11}=}$${\displaystyle \frac{1}{b^{11}}}$;

6) ${\displaystyle x^{-15}=}$${\displaystyle \frac{1}{x^{15}}}$;

7) ${\displaystyle p^{-20}=}$${\displaystyle \frac{1}{p^{20}}}$;

8) ${\displaystyle y^{-21}=}$${\displaystyle \frac{1}{y^{21}}}$;

9) ${\displaystyle z^{-31}=}$${\displaystyle \frac{1}{z^{31}}}$;

10) ${\displaystyle t^{-55}=}$${\displaystyle \frac{1}{t^{55}}}$.