作者查詢 / YmemY
作者 YmemY 在 PTT [ trans_math ] 看板的留言(推文), 共49則
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1F推:因為開根號之後是正數 所以只有上半z218.170.52.166 07/06 22:19
3F推:題目要積的是整個~ 但你只有算到一半218.170.52.166 07/06 22:38
4F→:上下有對稱 可以畫個圖~218.170.52.166 07/06 22:38
1F推:紅色的~218.170.52.166 07/06 21:35
15F推:請問f'(0)=0是怎麼來的?218.170.52.166 07/06 22:09
20F推:嗯嗯我錯了~218.170.52.166 07/06 22:14
4F→:這種無窮級數的平均 答案就是數列的極限值218.170.52.166 07/06 19:09
7F→:如果你的數列是1,2,3....n 那極限就是無窮大218.170.52.166 07/06 21:36
8F→:(1+2+3+...+n)/n 也會無窮大218.170.52.166 07/06 21:37
9F→:我有誤會你的意思嗎?218.170.52.166 07/06 21:37
3F推:請教一下,空間中曲線順時逆時要怎麼看?218.170.52.166 07/06 14:09
4F→:因為在使用旋度定理的時候要判斷正負號阿218.170.52.166 07/06 14:10
6F推:好的謝謝218.170.52.166 07/06 14:38
3F推:這招真的很屌218.170.56.24 07/04 16:13
6F推:用極座標來看可得極限是0 所以連續218.170.57.199 07/01 12:04
3F推:路過順便請問這題怎麼做?218.170.53.122 07/01 00:23
4F推:忘了推,你用關鍵字質心查一下就知道囉,218.170.57.199 07/02 10:13
5F推:令x = rcosθ,dA=rdrdθ218.170.57.199 07/02 10:20
5F推:對 觀察左斜率和右斜率 可以看出它是極值218.170.57.199 07/01 13:39
2F推:單位切線向量即是單位速度向量 你還沒微分吧218.170.53.169 06/30 17:42
3F→:而且在那個點 只有一個確定的切線方向 不含t218.170.53.169 06/30 17:42
1F推:是x^(n-1)沒錯 然後將每一項寫出來觀察218.170.53.169 06/30 17:23