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解答题A={x|x2-3x+2=0}B={x|ax=1},B包含于A,求a值
解答题A={x|x2-3x+2=0}B={x|ax=1},B包含于A,求a值
发布时间:2020-07-28 18:03:35
解答题A={x|x2-3x+2=0} B={x|ax=1},B包含于A,求a值
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{0.5,1,0}解析无
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解答题化简:4(a-b)2-(2a+b)(-b+2a)
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