Вправи 301 - 400 » 388

388. Піднесіть до степеня вираз: 1) (2x–3y)–4 = 2–4x12y–4 = 1/2^4 x12y–4 = 1/16x12y–4; 2) (x–6y–4)–5 = x20y20; 3) (0,5x–12y4)–1 =(1/2)–1x12y–4 = 2x12y–4; 4) (x^2/y)–5 = x^(-10)/y^(-5) = x10y5; 5) (3/y)–3 = (y/3)3 = y^3/27 = 1/27y3; 6) (a/b^(-2) )–3 = (b^(-2)/a)3 = b^(-6)/a^3 = a–3b–6; 7) (a^(-2)/〖4b〗^4 )–3 = (〖4b〗^2/a^(-2) )3 = 〖64b〗^12/a^(-6) = 64a6b12; 8) (–x^(-3)/〖2y〗^(-5) )2 = x^(-6)/〖4y〗^(-10) = 1/4x–6y10; 9) (–〖3a〗^(-5)/b^4 )–1 = –b^4/〖3a〗^(-5) = –1/3a5b4.