Вправи 301 - 400 » 378

378. Запишіть як степінь з натуральним показником: 1) (x – y)–2 = (1/(x- y))2; 3) (x2 – 1)–6 = 1/(x^2-1); 5) (1/x)–5 = x5; 7) (a/b)–2 = (b/a)2; 9) (m/n)–6 = (n/m)6; 11) (–p/n)–10 = (–n/p)10 = (n/p)10; 2) (10 + m)–4 = (1/(10+ m))4; 4) (a – c)–8 = (1/(a- c))8; 6) (1/b)–4 = b4; 8) (–a/b)–2 = (–b/a)2 = (b/a)2; 10) (–2/c)–3 = (–c/2)3; 12) (–3/z)–3 = (–z/5)3.