已知:如图,AD是∠BAC的平分线,DE⊥AB与E,DE⊥AC于F,并且BE=CF. 求证:点D在BC的垂直平分线上.
3个回答
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太太复杂了,费了我10000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000000个脑细胞都没想出来。
追问
那你说个P啊~
追答
你把题说清楚点,我可是数学老师啊。题的意思都不对。
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