Задача Задача №3748834
А
А
- а) \(\dfrac{y^2-16}{10xy}\cdot\dfrac{5y}{3y+12}=\dfrac{(y-4)(y+4)\cdot5y}{10xy\cdot3(y+4)}=\dfrac{y-4}{6x}\)
б) \(\dfrac{b-a}{a}\cdot\dfrac{3ab}{a^2-b^2}=\dfrac{-(a-b)\cdot3ab}{a(a-b)(a+b)}=-\dfrac{3b}{a+b}\)
б) \(\dfrac{b-a}{a}\cdot\dfrac{3ab}{a^2-b^2}=\dfrac{-(a-b)\cdot3ab}{a(a-b)(a+b)}=-\dfrac{3b}{a+b}\)