题库搜索>问题求解PS-13141
If xy ≠ 0 and x2y2 – xy = 6, which of the following could be y in terms of x?
I. 1/(2x)
II. – 2/x
III. 3/x
分析A选项
分析B选项
分析C选项
分析D选项
分析E选项
X表示y?
(xy-3)(xy+2)=0
Xy=3 y=3/x
Xy=-2 y=-2/x
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