ГДЗ Алгебра 9 клас Істер НУШ

11. Обчисліть:

1) 9–2 = 1/9^2 = 1/81;
2) (–4)–3 = 1/〖(-4)〗^3 = –1/64;
3) (–1)–7 = 1/〖(-1)〗^7 = –1;
4) 14–1 = 1/14^1 = 1/14;
5) 29 • 2–10 = 29–10 = 2–1 = 1/2^1 = 1/2;
6) 5 : 5–1 = 51–(–1) = 52 = 25;
7) 4^(-3)/4^(-2) = 4^2/4^3 = 1/4;
8) ((1/3)–1)–2 = (1/3)2 = 1/9.