用换元法解方程x2+1x2?2?(x+1x)?1=0时,设x+1x=y,则原方程可化为( )A.y2-2y-3=0B.y2-2y-1=0C.y
用换元法解方程x2+1x2?2?(x+1x)?1=0时,设x+1x=y,则原方程可化为()A.y2-2y-3=0B.y2-2y-1=0C.y2-y-1=0D.y2-2y+...
用换元法解方程x2+1x2?2?(x+1x)?1=0时,设x+1x=y,则原方程可化为( )A.y2-2y-3=0B.y2-2y-1=0C.y2-y-1=0D.y2-2y+3=0
展开
推荐律师服务:
若未解决您的问题,请您详细描述您的问题,通过百度律临进行免费专业咨询