Помогите 7,срочно нужно
(2/12c2+3/12c2)*с3/10 5/12с2*с3/10=5с3/120с2=с/24=36/24=1,5
1)1/6с^2 + 1/4с^2=2/12с^2 + 3/12с^2=5/12с^2 2) 5/12с^2 * с^3/10= с/24 с/24= 36/24=1,5