OA |
OB |
OC |
OA |
OB |
OC |
OC |
OA |
OB |
OA′ |
OA |
OB′ |
OB |
OA |
OB |
OC |
OA |
OB |
3 |
OA |
OC |
OC |
OB |
OA |
OB |
OC |
OA |
OB |
OC |
OA |
OB |
OA |
OC |
OC |
OB |
3 |
OA |
OB |
OC |
8-2
|
OA′ |
OA |
OB′ |
OB |
B′C |
OC′ |
OB′ |
OC |
OA′ |
3 |
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科目:高中數(shù)學(xué) 來源:數(shù)學(xué)教研室 題型:013
如圖,O是△ABC內(nèi)一點,且,則O是△ABC的
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科目:高中數(shù)學(xué) 來源:2012-2013學(xué)年湖北省荊州市公安三中高三(上)數(shù)學(xué)積累測試卷07(解析版) 題型:解答題
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