Re: [積分] 97年師大
※ 引述《freshcute (咕嚕咕嚕)》之銘言:
: lim xsin(1/x) = ________
: x->∞
: ∞
u = 1/x
=lim (1/u)sin(u) = 1
u->0
: X
: ∫ --------- dX = ___________
: 2
: -∞ 1-SECX
∞ x
= ∫ --------- dX = 0
-∞ 1-sec(x^2)
: 今天師大資工考題
: 請問要怎麼解呢 ?
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※ 發信站: 批踢踢實業坊(ptt.cc)
◆ From: 122.124.106.124
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07/06 20:41, , 1F
07/06 20:41, 1F
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※ 編輯: Honor1984 來自: 122.124.106.124 (07/06 20:46)
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