lim(x →∞) (x√x sin1/x)/(√x -1)

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lim(x→∞)(x√xsin1/x)/(√x-1)lim(x→∞)(x√xsin1/x)/(√x-1)lim(x→∞)(x√xsin1/x)/(√x-1)lim(x→∞)(x√xsin1/x)/(√

lim(x →∞) (x√x sin1/x)/(√x -1)
lim(x →∞) (x√x sin1/x)/(√x -1)

lim(x →∞) (x√x sin1/x)/(√x -1)
lim(x →∞) (x√x sin1/x)/(√x -1)
=lim(x →∞) [x√x sin1/x]/[√(x -1)]
=lim(x →∞) xsin1/x
=lim(x →∞) (sin1/x)/(1/x)
令1/x=t
则:=lim(t →o) sint/t
=1