若√x-√y与√x+√y互为倒数,则( ) A.x=y-1.B.x=y+1 C.x=1-y.D.x=若√x-√y与√x+√y互为倒数,则( )A.x=y-1.B.x=y+1C.x=1-y.D.x=-y-1
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![若√x-√y与√x+√y互为倒数,则( ) A.x=y-1.B.x=y+1 C.x=1-y.D.x=若√x-√y与√x+√y互为倒数,则( )A.x=y-1.B.x=y+1C.x=1-y.D.x=-y-1](/uploads/image/z/8613048-48-8.jpg?t=%E8%8B%A5%E2%88%9Ax%EF%BC%8D%E2%88%9Ay%E4%B8%8E%E2%88%9Ax%2B%E2%88%9Ay%E4%BA%92%E4%B8%BA%E5%80%92%E6%95%B0%2C%E5%88%99%EF%BC%88+%EF%BC%89+A.x%3Dy%EF%BC%8D1.B.x%3Dy%2B1+C.x%3D1%EF%BC%8Dy.D.x%3D%E8%8B%A5%E2%88%9Ax%EF%BC%8D%E2%88%9Ay%E4%B8%8E%E2%88%9Ax%2B%E2%88%9Ay%E4%BA%92%E4%B8%BA%E5%80%92%E6%95%B0%2C%E5%88%99%EF%BC%88+%EF%BC%89A.x%3Dy%EF%BC%8D1.B.x%3Dy%2B1C.x%3D1%EF%BC%8Dy.D.x%3D-y%EF%BC%8D1)
若√x-√y与√x+√y互为倒数,则( ) A.x=y-1.B.x=y+1 C.x=1-y.D.x=若√x-√y与√x+√y互为倒数,则( )A.x=y-1.B.x=y+1C.x=1-y.D.x=-y-1
若√x-√y与√x+√y互为倒数,则( ) A.x=y-1.B.x=y+1 C.x=1-y.D.x=
若√x-√y与√x+√y互为倒数,则( )
A.x=y-1.B.x=y+1
C.x=1-y.D.x=-y-1
若√x-√y与√x+√y互为倒数,则( ) A.x=y-1.B.x=y+1 C.x=1-y.D.x=若√x-√y与√x+√y互为倒数,则( )A.x=y-1.B.x=y+1C.x=1-y.D.x=-y-1
选B.x=y+1
若√x-√y与√x+√y互为倒数,则
(√x-√y((√x+√y)=1
x-y=1