Вправи: 276

276. Обчисліть

1) 7–2 = 172 = 149;3) (–1)–5 = 1(-1)5 = –1;5) (–7)–1 = 1(-7)1 = –17;7) (13)–2 = (31)2 = 9;9) (–34)–3 = (–43)3 = –6427 = –21027;	2) (–2)–2 = 1(-2)2 = 14;4) 12–1 = 1121 = 112;6) 10–3 = 1103 = 11000;8) (–23)–1 = (–32)1 = –32 = –112;10) (112)–5 = (32)–5 = (25)5 = 32243;
11) (–113)–2 = (–43)–2 = (–34)2 = 916;12) (–215)–1 = (–115)–1 = (–511)1 = –511;

13) 0,1^–1 = (110)–¹ = (101)¹ = 10;

14)(–0,2)^–2 = (15)^–2 = (–51)² = 25;

15) (1,2)^–2 = (65)^–2 = (56)² = 2536;

16) (–0,25)–³ = (–14)^–3 = (–41)³ = –64.