[問題] 求救一題數學
代po
想不出來
求救各位高手給個解題過程
http://i.imgur.com/tRPl0bt.jpg
感激不盡,學測加油~
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※ 編輯: nicky1031618 (223.141.191.5), 12/30/2016 19:40:27
推
12/30 20:05, , 1F
12/30 20:05, 1F
→
12/30 20:05, , 2F
12/30 20:05, 2F
→
12/30 20:05, , 3F
12/30 20:05, 3F
請問z大如何看出CAP是90度呢?
推
12/30 20:13, , 4F
12/30 20:13, 4F
→
12/30 20:13, , 5F
12/30 20:13, 5F
看不懂QQ兩位講的好像不太一樣?
※ 編輯: nicky1031618 (223.141.191.5), 12/30/2016 20:24:07
※ 編輯: nicky1031618 (223.141.191.5), 12/30/2016 20:27:52
推
12/30 20:34, , 6F
12/30 20:34, 6F
推
12/30 20:42, , 7F
12/30 20:42, 7F
對吼P可以當B,感謝大家
※ 編輯: nicky1031618 (223.141.191.5), 12/30/2016 20:46:32
推
12/30 20:47, , 8F
12/30 20:47, 8F
→
12/30 20:47, , 9F
12/30 20:47, 9F
推
12/30 20:47, , 10F
12/30 20:47, 10F
推
12/30 20:52, , 11F
12/30 20:52, 11F
推
12/30 20:55, , 12F
12/30 20:55, 12F
→
12/30 20:55, , 13F
12/30 20:55, 13F
→
12/30 20:55, , 14F
12/30 20:55, 14F
推
12/30 21:00, , 15F
12/30 21:00, 15F
→
12/30 21:05, , 16F
12/30 21:05, 16F
→
12/30 21:05, , 17F
12/30 21:05, 17F
→
12/30 21:19, , 18F
12/30 21:19, 18F
→
12/30 21:19, , 19F
12/30 21:19, 19F
噓
12/30 21:37, , 20F
12/30 21:37, 20F
→
12/30 21:38, , 21F
12/30 21:38, 21F
推
12/31 00:34, , 22F
12/31 00:34, 22F
→
12/31 14:33, , 23F
12/31 14:33, 23F
→
12/31 14:34, , 24F
12/31 14:34, 24F
噓
01/07 16:12, , 25F
01/07 16:12, 25F
→
01/07 16:12, , 26F
01/07 16:12, 26F
→
01/07 16:12, , 27F
01/07 16:12, 27F
推
01/07 16:15, , 28F
01/07 16:15, 28F
→
01/07 16:15, , 29F
01/07 16:15, 29F