Помогите мне,очень надо пожалуйста
-6/((х-1)(х+1))+3(х-1) = -6/((х-1)(х+1))+3х+3/((х-1)(х+1))= -6+3х+3/((х-1)(х+1)) = 3х-3/((х-1)(х+1)) = 3(х-1) /((х-1)(х+1)) = 3/х+1 = 3/1999+1= 3/2000 = 0.0015 №2 Х2/(х-1)2 – х+1/х-1 = х2/(х-1)2-х2-1/(х-1)2 = х2-х2+1/(х-1)2 = 1/(х-1)2 = 1/(21-1)2 = 1/202 = 1/400 = 0.0025 Вот, держи
Айгуль Белка
Ответов (1)
-6/((х-1)(х+1))+3(х-1) = -6/((х-1)(х+1))+3х+3/((х-1)(х+1))= -6+3х+3/((х-1)(х+1)) = 3х-3/((х-1)(х+1)) = 3(х-1) /((х-1)(х+1)) = 3/х+1 = 3/1999+1= 3/2000 = 0.0015 №2 Х2/(х-1)2 – х+1/х-1 = х2/(х-1)2-х2-1/(х-1)2 = х2-х2+1/(х-1)2 = 1/(х-1)2 = 1/(21-1)2 = 1/202 = 1/400 = 0.0025 Вот, держи