A={x|y=-4x+6},B={x|y=5x-3},求A∩B.
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如果A={(x,y)|x,y+2>0},B={(x,y)|2x+3y-6>0},C={(x,y)|x-4
几道 数学题急啊 对了再加20分(x+y)^2-(x+y)^3(x-y)^2-(x-y)^3 (x-y)^2-(y-x)^32(x-y)-3(y-x)^24ab(a+b)^2-6a^2b(a+b)(x+y)(x-y)-(x+y)^28a(x-y)^2-4b(y-x)a=-5 a+b+c=-5.2求代数式a^2(-b-c)-3.2a(c+b)的值
A={y|y=-4x+6},B={x|y=5x-3},求A∩B.
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A={x|y=-4x+6},B={x|y=5x-3},求A∩B.
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