函数f(x)=x(x-1)(x-2)…(x-50)在点x=0处导数为(  ) A.0 B.50 2 C.100 D.50

2025-03-23 21:21:53
推荐回答(1个)
回答(1):

f′(x)=x′[(x-1)(x-2)…(x-50)]+x[(x-1)(x-2)…(x-50)]′
=[(x-1)(x-2)…(x-50)]+x[(x-1)(x-2)…(x-50)]′
∴f′(0)=(-1)(-2)…(-50)=50!
故选D