如图bd等于cd,角abd等于角acd等于90度,点e,f分别在ab,ac上,若ed平分角bef.1 求证fd平分角efc 2如图bd等于cd,角abd等于角acd等于90度,点e,f分别在ab,ac上,若ed平分角bef.1 求证fd平分角efc2 求证ef等于be加cf
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![如图bd等于cd,角abd等于角acd等于90度,点e,f分别在ab,ac上,若ed平分角bef.1 求证fd平分角efc 2如图bd等于cd,角abd等于角acd等于90度,点e,f分别在ab,ac上,若ed平分角bef.1 求证fd平分角efc2 求证ef等于be加cf](/uploads/image/z/13745783-47-3.jpg?t=%E5%A6%82%E5%9B%BEbd%E7%AD%89%E4%BA%8Ecd%2C%E8%A7%92abd%E7%AD%89%E4%BA%8E%E8%A7%92acd%E7%AD%89%E4%BA%8E90%E5%BA%A6%2C%E7%82%B9e%2Cf%E5%88%86%E5%88%AB%E5%9C%A8ab%2Cac%E4%B8%8A%2C%E8%8B%A5ed%E5%B9%B3%E5%88%86%E8%A7%92bef.1+%E6%B1%82%E8%AF%81fd%E5%B9%B3%E5%88%86%E8%A7%92efc+2%E5%A6%82%E5%9B%BEbd%E7%AD%89%E4%BA%8Ecd%2C%E8%A7%92abd%E7%AD%89%E4%BA%8E%E8%A7%92acd%E7%AD%89%E4%BA%8E90%E5%BA%A6%2C%E7%82%B9e%2Cf%E5%88%86%E5%88%AB%E5%9C%A8ab%2Cac%E4%B8%8A%2C%E8%8B%A5ed%E5%B9%B3%E5%88%86%E8%A7%92bef.1++%E6%B1%82%E8%AF%81fd%E5%B9%B3%E5%88%86%E8%A7%92efc2++%E6%B1%82%E8%AF%81ef%E7%AD%89%E4%BA%8Ebe%E5%8A%A0cf)
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