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把关于X的方程x2-x+1/x-1变形为方程a+1/a-1的形式是
人气:203 ℃ 时间:2020-01-15 17:56:24
解答
(X²-X+1)/(X-1)=A+1/(A-1)
[x(x-1)+1]/(x-1)=A+1/(A-1)
X+1/(X-1)=A+1/(A-1)
X-1+1/(X-1)=A+1+1/(A-1).
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