已知集合A{(x,y)/2x+3y+5=0} 和集合B{(x,y)/(a-2)x+ay-1=0}若A交B为空集,求a
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![已知集合A{(x,y)/2x+3y+5=0} 和集合B{(x,y)/(a-2)x+ay-1=0}若A交B为空集,求a](/uploads/image/z/15180956-44-6.jpg?t=%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%7B%EF%BC%88x%2Cy%29%2F2x%2B3y%2B5%3D0%7D+%E5%92%8C%E9%9B%86%E5%90%88B%7B%EF%BC%88x%2Cy%29%2F%28a-2%29x%2Bay-1%3D0%7D%E8%8B%A5A%E4%BA%A4B%E4%B8%BA%E7%A9%BA%E9%9B%86%2C%E6%B1%82a)
已知集合A{(x,y)/2x+3y+5=0} 和集合B{(x,y)/(a-2)x+ay-1=0}若A交B为空集,求a
已知集合A{(x,y)/2x+3y+5=0} 和集合B{(x,y)/(a-2)x+ay-1=0}
若A交B为空集,求a
已知集合A{(x,y)/2x+3y+5=0} 和集合B{(x,y)/(a-2)x+ay-1=0}若A交B为空集,求a
A,B是两直线,其交集为空集,即为两直线平行.
则2/(a-2)=3/a
得a=6