求y=(x+1)(x+2)(x+3)的导数
问题描述:
求y=(x+1)(x+2)(x+3)的导数
答
y' = (x+1)'(x+2)(x+3)+(x+1)(x+2)'(x+3)+(x+1)(x+2)(x+3)'
=(x+2)(x+3)+(x+1)(x+3)+(x+1)(x+2)
=3x²+12x+11