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
问题描述:
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
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).