[理工] [數學]-台大106-資工所
想問一下今天考的幾題怎麼解
(應該要把握住的題目竟然不會orz)
若搞錯題意 敬請指教
3.
(x,y)不等於(0,0), L為過(x,y)為(0,0)之直線,
求 R^2 在 L 上的 orthogonal projection 之 matrix representation
4.
f(x,y)=x0y0+... (等號右邊忘記長什麼樣子了QQ)
[感謝dot1258大大指正] f(x,y)=x1*y1-x1*y2-x2*y1+4x2*y2
(x0,x1)為standard coordinate ( (y0,y1) 亦為 standard coordinate)
令u=(1,0)
找一vector v 使 f(x,y)=s1*t1+s2*t2,
其中(s1,s2),(t1,t2)分別為u,v之coordinate(?)
11(?).
n為奇數, 求 C(n,0)+C(n,1)+...+C(n, (n-1)/2 )
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※ 編輯: jcyz (61.230.98.167), 02/11/2017 20:14:51
推
02/11 20:14, , 1F
02/11 20:14, 1F
84年次不是不用當兵了?
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02/11 20:17, , 2F
02/11 20:17, 2F
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02/11 20:18, , 3F
02/11 20:18, 3F
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02/11 20:19, , 4F
02/11 20:19, 4F
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02/11 20:19, , 5F
02/11 20:19, 5F
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02/11 20:22, , 6F
02/11 20:22, 6F
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02/11 20:23, , 7F
02/11 20:23, 7F
推
02/11 20:27, , 8F
02/11 20:27, 8F
謝謝d大 已修改~
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02/11 20:28, , 9F
02/11 20:28, 9F
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02/11 20:28, , 10F
02/11 20:28, 10F
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02/11 20:28, , 11F
02/11 20:28, 11F
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02/11 20:30, , 12F
02/11 20:30, 12F
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02/11 20:31, , 13F
02/11 20:31, 13F
※ 編輯: jcyz (61.230.98.167), 02/11/2017 20:33:13
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02/11 20:33, , 14F
02/11 20:33, 14F
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02/11 20:36, , 15F
02/11 20:36, 15F
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02/11 20:37, , 16F
02/11 20:37, 16F
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02/11 20:40, , 17F
02/11 20:40, 17F
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02/11 20:41, , 18F
02/11 20:41, 18F
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02/11 20:41, , 19F
02/11 20:41, 19F
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02/11 20:41, , 20F
02/11 20:41, 20F
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02/11 20:41, , 21F
02/11 20:41, 21F
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02/11 20:41, , 22F
02/11 20:41, 22F
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02/11 20:42, , 23F
02/11 20:42, 23F
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02/11 20:44, , 24F
02/11 20:44, 24F
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02/11 20:45, , 25F
02/11 20:45, 25F
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02/11 20:46, , 26F
02/11 20:46, 26F
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02/11 20:47, , 27F
02/11 20:47, 27F
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02/11 20:50, , 28F
02/11 20:50, 28F
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02/11 21:02, , 29F
02/11 21:02, 29F
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02/11 21:07, , 30F
02/11 21:07, 30F
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02/11 21:07, , 31F
02/11 21:07, 31F
→
02/11 21:07, , 32F
02/11 21:07, 32F
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02/11 21:08, , 33F
02/11 21:08, 33F
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02/11 21:08, , 34F
02/11 21:08, 34F
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02/11 21:08, , 35F
02/11 21:08, 35F
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02/11 21:09, , 36F
02/11 21:09, 36F
→
02/11 21:09, , 37F
02/11 21:09, 37F
謝謝各位大大的解說以及各位考友的熱烈回應
感恩~
※ 編輯: jcyz (61.230.98.167), 02/11/2017 21:42:43
推
02/11 23:42, , 38F
02/11 23:42, 38F
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02/11 23:42, , 39F
02/11 23:42, 39F
→
02/11 23:42, , 40F
02/11 23:42, 40F
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02/11 23:42, , 41F
02/11 23:42, 41F
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02/11 23:42, , 42F
02/11 23:42, 42F
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02/11 23:42, , 43F
02/11 23:42, 43F
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02/11 23:43, , 44F
02/11 23:43, 44F
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