请教已知函数f(x)=x(x-1)(x-2)(x-3)(x-4).(x-100),求f'(1)=?f'(100)=?已知函数f(x)=x(x-1)(x-2)(x-3)(x-4).(x-100),求f'(1)=?f'(100)=?

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请教已知函数f(x)=x(x-1)(x-2)(x-3)(x-4).(x-100),求f'(1)=?f'(100)=?已知函数f(x)=x(x-1)(x-2)(x-3)(x-4).(x-100),求f'(1)=?f'(100)=?
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请教已知函数f(x)=x(x-1)(x-2)(x-3)(x-4).(x-100),求f'(1)=?f'(100)=?已知函数f(x)=x(x-1)(x-2)(x-3)(x-4).(x-100),求f'(1)=?f'(100)=?
请教已知函数f(x)=x(x-1)(x-2)(x-3)(x-4).(x-100),求f'(1)=?f'(100)=?
已知函数f(x)=x(x-1)(x-2)(x-3)(x-4).(x-100),求f'(1)=?f'(100)=?

请教已知函数f(x)=x(x-1)(x-2)(x-3)(x-4).(x-100),求f'(1)=?f'(100)=?已知函数f(x)=x(x-1)(x-2)(x-3)(x-4).(x-100),求f'(1)=?f'(100)=?
f'(x)=(x-1)‘x(x-2)(x-3)(x-4).(x-100)+(x-1)[x(x-2)(x-3)(x-4).(x-100)]'
f'(1)=-99!
f'(x)=(x-100)'x(x-1)(x-2)(x-3)(x-4).(x-99)+(x-100)[x(x-1)(x-2)(x-3)(x-4).(x-99)]'
f'(100)=100!
(uv)'=u'v+uv’
乘法求导公式

=99!
=100!
用导数极限定义来解题