已知x2-y2=xy(xy不等于0)则x/y-y/x=____

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已知x2-y2=xy(xy不等于0)则x/y-y/x=____
已知x2-y2=xy(xy不等于0)则x/y-y/x=____

已知x2-y2=xy(xy不等于0)则x/y-y/x=____
x/y-y/x
=x²/xy-y²/xy
=(x²-y)/xy
=xy/xy
=1