Вправи: 314

314. Знайдіть значення виразу:

1) 39 • 3–8 = 31 = 3;3) (17)–6 • (17)5 = (17)–1 = 7;5) 104 : 105 = 10–1 = 110;7) 7 : 7–1 = 72 = 49;9) (3–1)4 = 3–4 = 134 = 181;

2) 2–3 • 2 = 2–2 = 122 = 14;4) (13)–9 • (13)7 = (13)–2 = 32 = 9;6) 8–12 : 8–13 = 81 = 8;8) (27)–7 : (27)–7 = (27)0 = 1;

10) ((15)^–2)^–1 = (15)² = 125;

11) (0,2³)^–1 = (0,2)^–3 = (15)^–3 = 5³ = 125;

12) ((713)⁰)^–12 = (713)⁰ = 1.