问题
填空题
已知函数f(x)=x(x-1)(x-2)(x-3)(x-4)(x-5),则f′(0)=________.
答案
-120
f′(x)=(x-1)(x-2)(x-3)(x-4)(x-5)+x[(x-1)(x-2)(x-3)(x-4)(x-5)]′,∴f′(0)=(-1)×(-2)×(-3)×(-4)×(-5)=-120.
已知函数f(x)=x(x-1)(x-2)(x-3)(x-4)(x-5),则f′(0)=________.
-120
f′(x)=(x-1)(x-2)(x-3)(x-4)(x-5)+x[(x-1)(x-2)(x-3)(x-4)(x-5)]′,∴f′(0)=(-1)×(-2)×(-3)×(-4)×(-5)=-120.