证明:若两个可导函数f(x)与ψ(x)满足f(x)=0,ψ(x)=0,f'(x)与ψ'(x)均存在且
证明:若两个可导函数f(x)与ψ(x)满足f(x)=0,ψ(x)=0,f'(x)与ψ'(x)均存在且ψ'(x)≠0,则有limf(x)/ψ(x)=f'(0)/ψ'(0)...
证明:若两个可导函数f(x)与ψ(x)满足f(x)=0,ψ(x)=0,f'(x)与ψ'(x)均存在且ψ'(x)≠0,则有limf(x)/ψ(x)=f'(0)/ψ'(0)
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