[考古] 成大94

[linda1218 (linda)]

5:   oo     1
    sigma(----------) is convergent?
    n=2    n(lnn)^2

6: find the third taylor polynominal of f(x)=sin(sinx)

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※ 發信站: 批踢踢實業坊(ptt.cc) 
◆ From: 220.139.222.78
→ yhliu:sin(sin(x))～sin(x)-sin^3(x)/6
→ yhliu:    ～ (x-x^3/6)-x^3/6 = x - x^3/3