第一题:已知a、b、c,使得I1/a+1/b-1I+(1/b+1/c-6)2+(1/3c+1/3a-1)四次方=0.求a、b、c的值.第二题:已知[图上的方程].求x:y:z第三题:若m、n互为倒数,则mn2-(n-1)的值为_____.( ⊙ _ ⊙ )请问:第一题1/a+1/b=
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![第一题:已知a、b、c,使得I1/a+1/b-1I+(1/b+1/c-6)2+(1/3c+1/3a-1)四次方=0.求a、b、c的值.第二题:已知[图上的方程].求x:y:z第三题:若m、n互为倒数,则mn2-(n-1)的值为_____.( ⊙ _ ⊙ )请问:第一题1/a+1/b=](/uploads/image/z/5297020-52-0.jpg?t=%E7%AC%AC%E4%B8%80%E9%A2%98%EF%BC%9A%E5%B7%B2%E7%9F%A5a%E3%80%81b%E3%80%81c%2C%E4%BD%BF%E5%BE%97I1%2Fa%2B1%2Fb-1I%2B%281%2Fb%2B1%2Fc-6%292%2B%281%2F3c%2B1%2F3a-1%29%E5%9B%9B%E6%AC%A1%E6%96%B9%3D0.%E6%B1%82a%E3%80%81b%E3%80%81c%E7%9A%84%E5%80%BC.%E7%AC%AC%E4%BA%8C%E9%A2%98%EF%BC%9A%E5%B7%B2%E7%9F%A5%5B%E5%9B%BE%E4%B8%8A%E7%9A%84%E6%96%B9%E7%A8%8B%5D.%E6%B1%82x%3Ay%3Az%E7%AC%AC%E4%B8%89%E9%A2%98%EF%BC%9A%E8%8B%A5m%E3%80%81n%E4%BA%92%E4%B8%BA%E5%80%92%E6%95%B0%2C%E5%88%99mn2-%EF%BC%88n-1%EF%BC%89%E7%9A%84%E5%80%BC%E4%B8%BA_____.%28+%E2%8A%99+_+%E2%8A%99+%29%E8%AF%B7%E9%97%AE%EF%BC%9A%E7%AC%AC%E4%B8%80%E9%A2%981%2Fa%2B1%2Fb%3D)
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