1.x=c,x=c/m2.x+2/x-1=a+2/a-1,保持格式一致x-1+2/x-1=a-1+2/a-1那么X-1=a-1 x-1=2/a-1.即x=a x=a+1/a-1
是这样1.x=c,x=c/m2.x+2/x-1=a+2/a-1,保持格式一致x-1+2/x-1=a-1+2/a-1那么X-1=a-1 x-1=2/a-1.即x=a x=a+1/a-1