(1+1/n)^n (式一)用二項(xiàng)式展開得:(1+1/n)^n = 1^n+(n/1)(1/n)+[(n(n-1))/(2*1)]*(1/n)^2+[(n(n-1)(n-2))/(3*2*1)]*(1/n)^3 + … +... [全文]
2022-08-01
令y=x, lim(x,y)趨于(0,0)xy/x+y=lim(x趨于0)x^2/(2x)=0令y=x^2-x,lim(x,y)趨于(0,0)xy/x+y= lim(x趨于0) x^3-x^2/ x^2 =-1兩種... [全文]
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