Розділ 1. РАЦІОНАЛЬНІ ВИРАЗИ » 10.11
10.11 Знайдіть значення виразу: 1) 39 • 3–8 = 31 = 3; 3) (1/7)–6 • (1/7)5 = (1/7)–1 = 7; 5) 104 : 105 = 10–1 = 1/10; 7) 7 : 7–1 = 72 = 49; 9) (3–1)4 = 3–4 = 1/3^4 = 1/81; 2) 2–3 • 2 = 2–2 = 1/2^2 = 1/4; 4) (1/3)–9 • (1/3)7 = (1/3)–2 = 32 = 9; 6) 8–12 : 8–13 = 81 = 8; 8) (2/7)–7 : (2/7)–7 = (2/7)0 = 1; 10) ((1/5)–2)–1 = (1/5)2 = 1/25; 11) (0,23)–1 = (0,2)–3 = (1/5)–3 = 53 = 125; 12) ((7/13)0)–12 = (7/13)0 = 1.