化简并求值∶(a^2-2ab+b^2-c^2)/(a^2-2ac-b^2-c^2)+[1-2(a-c)/(a+b-c),其中a+b=2c快
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![化简并求值∶(a^2-2ab+b^2-c^2)/(a^2-2ac-b^2-c^2)+[1-2(a-c)/(a+b-c),其中a+b=2c快](/uploads/image/z/11615628-12-8.jpg?t=%E5%8C%96%E7%AE%80%E5%B9%B6%E6%B1%82%E5%80%BC%E2%88%B6%28a%5E2-2ab%2Bb%5E2-c%5E2%29%2F%28a%5E2-2ac-b%5E2-c%5E2%29%2B%5B1-2%28a-c%29%2F%28a%2Bb-c%29%2C%E5%85%B6%E4%B8%ADa%2Bb%3D2c%E5%BF%AB)
化简并求值∶(a^2-2ab+b^2-c^2)/(a^2-2ac-b^2-c^2)+[1-2(a-c)/(a+b-c),其中a+b=2c快
化简并求值∶(a^2-2ab+b^2-c^2)/(a^2-2ac-b^2-c^2)+[1-2(a-c)/(a+b-c),其中a+b=2c
快
化简并求值∶(a^2-2ab+b^2-c^2)/(a^2-2ac-b^2-c^2)+[1-2(a-c)/(a+b-c),其中a+b=2c快
1加1/c