F(x)=x(x-1)(x-2)(x-3)……(x-n),求F'(0).
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F(x)=x(x-1)(x-2)(x-3)……(x-n),求F'(0).
F(x)=x(x-1)(x-2)(x-3)……(x-n),求F'(0).
F(x)=x(x-1)(x-2)(x-3)……(x-n),求F'(0).
明白的话请采纳
lnf(x)=ln(x)+ln(x-1)+..+ln(x-n)
f'(x)/f(x)=1/x+1/(x-1)+..+1/(x-n)
f'(x)=[1/x+1/(x-1)+..+1/(x-n)]x(x-1)(x-2)..(x-n)
f'(0)=0
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