РОЗДІЛ 2. Раціональні вирази - Вправи 50 - 200 » 118

118. Зведіть дріб: 1) 1^(\2)/ab = 2/2ab; 1^(\a)/ab = a/(a^2 b); 1^(\b)/ab = b/ab^2 ; 1^(\〖3a〗^2 )/ab = 〖3a〗^2/(〖3a〗^3 b); 1^(\-2ab)/ab = (-2ab)/(〖-2a〗^2 b^2 ); 1^(\3c)/ab = 3c/3abc 2) 〖x-y〗^(\2)/2xy = (2x-2y)/4xy; 〖x-y〗^(\4x)/2xy = (〖4x〗^2- 4xy)/(〖8x〗^2 y); 〖x-y〗^(\3y)/2xy = 〖3xy-3y〗^2/〖6xy〗^2 ; 〖x-y〗^(\〖-6x〗^2 y)/2xy = (〖-6x〗^3 y+ 〖6x〗^2 y^2)/(〖-12x〗^3 y^2 ); 〖x-y〗^(\4a)/2xy = (4ax-4ay)/8axy. 3) 〖2m-n〗^(\n)/(m^2 n) = 〖2mn-n〗^2/(m^2 n^2 ); 〖2m-n〗^(\2m)/(m^2 n) = (〖4m〗^2- 2mn)/(〖2m〗^3 n) 〖2m-n〗^(\9mn)/(m^2 n) = (〖18m〗^2 n- 〖9mn〗^2)/(〖9m〗^3 n^2 ); 〖2m-n〗^(\〖-7m〗^3 n^2 )/(m^2 n) = (〖-14m〗^4 n^2+ 〖7m〗^3 n^3)/(〖-7m〗^5 n^3 ).