[微積] 1^∞公式推導
若lim b(x)=1, lim c(x)=∞
x->a x->a
lim [b(x)-1] c(x)
c(x) x->a
則 lim [b(x)] = e
x->a
這公式到底怎麼來的呀?我已經想了兩天了~~
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