作者查詢 / fix927
作者 fix927 在 PTT [ Math ] 看板的留言(推文), 共15則
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1F推:已解決 感謝01/21 19:04
2F→:題目剛寫錯了 可以再幫我看一下嗎@@謝謝01/21 00:42
1F推:題目有更動 請在幫我看一下01/21 00:42
6F推:我的算法有點醜 算出的答案是x=15-√185 不知有解答?01/17 00:30
7F→:我是用三條道路都是平行四邊形 減去兩個重疊的菱形01/17 00:31
11F推:如果是平行四邊形 路寬都是X 三個平行四邊形面積一樣01/17 13:06
12F→:吧?! 不是底乘以高嗎 路寬是X *10(高)01/17 13:07
1F推:謝謝!!!01/16 20:53
5F→:所以把積分直接微分 就除掉符號就好囉?01/16 20:42
6F→:因為我是想說不定積分的話是負無窮大到無窮大 這邊只01/16 20:42
7F→:有0到無窮大 會不會要除以二@@01/16 20:43
8F→:感謝01/16 20:43
2F→:馬上來算一下01/15 21:27
4F→:請問∫(2u)e^udu這部分是用分部積分解的嗎?01/15 21:34
6F→:算出來了!!!!感謝啊!!01/15 21:35
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