III：平面坐標與向量

標題	作者	回覆/查看	最後發表
請問	martinofncku 2015-6-3	2 / 8463	2015-6-3 18:02 by martinofncku
三角函數一題求解	anson721 2015-5-20	2 / 8550	2015-5-21 14:23 by thepiano
三題會考模擬題	nanpolend 2015-5-4	0 / 8335	2015-5-4 09:44 by nanpolend
等腰三角與共線	bch0722b 2015-4-15	5 / 9445	2015-4-30 23:29 by cefepime
過圓外一點P作圓O的兩條切線,則向量PA內積向量PB的最小值	P78961118 2015-4-11	1 / 11261	2015-4-12 10:16 by thepiano
請教三題(圓和向量)	qaz 2015-3-12	2 / 8865	2015-3-14 23:30 by qaz
請教正8面體的內切圓半徑	arend 2015-3-4	7 / 10946	2015-3-8 02:48 by arend
103國中模擬考	nanpolend 2015-3-4	1 / 8719	2015-3-4 21:04 by thepiano
x>=0,y>=0,2x+y-2<=0,x+2y-2<=0,求xy的最大值?	P78961118 2015-3-3	3 / 8653	2015-3-4 15:07 by thepiano
請教正五邊形問題	fuzzydog 2015-2-26	2 / 9266	2015-2-26 21:36 by fuzzydog
幾何角度問題	tsyr 2015-2-8	2 / 9024	2015-2-16 19:36 by tsyr
請教一題	thankyou 2015-1-16	3 / 9030	2015-1-16 16:27 by thepiano
請教幾何角度一題	nanpolend 2015-1-15	1 / 8829	2015-1-15 23:35 by nanpolend
請教三題	nanpolend 2015-1-15	2 / 8771	2015-1-15 19:30 by nanpolend
請教一題	thankyou 2015-1-6	1 / 8701	2015-1-6 13:48 by thepiano
三點共線問題	tsyr 2015-1-2	2 / 10559	2015-1-2 21:17 by thepiano
請教一題三角函數	thankyou 2014-12-26	4 / 9942	2014-12-26 10:54 by weiye
2015apmo	hugo964 2014-12-23	2 / 11365	2014-12-25 18:21 by cefepime
請教一題三角函數	thankyou 2014-12-23	2 / 9472	2014-12-23 22:30 by cefepime
若C在圓O的AB弧上移動,向量OC=x(向量OA)+y(向量OB),,求x+y最大值	P78961118 2014-12-6	1 / 8378	2014-12-7 13:50 by thepiano

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