作者查詢 / DLHZ
作者 DLHZ 在 PTT [ Math ] 看板的留言(推文), 共362則
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4F→: ...幫忙做作業??12/19 19:09
3F推: 要跟誰比大小12/17 14:38
5F→: 180°.14 所以45°多所以tan4>1 sin(-520°)=12/17 15:04
6F→: sin(200°)<0 cos(711°)=cos(351°) 在0~1之間12/17 15:04
7F→: 有些符號好像打不出來 180°=pi大概3.1412/17 15:08
10F→: 不好意思我更正一下 這邊說的45°是從180°開始算的12/17 19:36
6F→: 10 正弦定理12/17 18:18
7F→: 設a+b=4t b+c=5t 以此類推 即可求出a b c12/17 18:19
8F→: x/8x x不就約掉嗎12/17 11:23
9F→: 當我沒說XD12/17 11:23
12F→: 那個式子上下同除x 下面根號就...(16-1/x)^1/2...取12/17 11:27
13F→: 極限後1/x就是012/17 11:27
14F→: 一開始不能省略是他就在那裡你當然不能忽略他12/17 11:28
15F→: 你忽略不就是說他(16x^2-x)^1/2 = (16x-1)^1/2 怎麼12/17 11:30
16F→: 想都不太對吧12/17 11:30
1F→: 你的圖網址不能看12/15 12:33
4F推: 應該是先看(-3)^(1/2)=i*3^(1/2)所以左邊為-9右邊是12/03 21:44
5F→: 9 但是五就沒這問題12/03 21:44
1F→: 全部一起問???考試?作業?10/30 12:25
1F→: 你的pg不見了10/25 16:53
1F→: 可能只是看的方向不同 外面往裡面看就是順反之就是10/21 12:15
2F→: 逆10/21 12:15
3F推: 沒90度就不相等10/15 12:47