1.函数Y=[2x^2+(a-6)x+a]/[x^2+2ax+(2a+3)]的定义域为集合A,求集合AM={a|使Y>0对任x属于A恒成立}一种是分子分母都大于0解不等式得2答案还有一种是分子分母有相同零点解得a=-2 请解释一下什么叫有相
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![1.函数Y=[2x^2+(a-6)x+a]/[x^2+2ax+(2a+3)]的定义域为集合A,求集合AM={a|使Y>0对任x属于A恒成立}一种是分子分母都大于0解不等式得2答案还有一种是分子分母有相同零点解得a=-2 请解释一下什么叫有相](/uploads/image/z/4945552-16-2.jpg?t=1.%E5%87%BD%E6%95%B0Y%3D%5B2x%5E2%2B%28a-6%29x%2Ba%5D%2F%5Bx%5E2%2B2ax%2B%282a%2B3%29%5D%E7%9A%84%E5%AE%9A%E4%B9%89%E5%9F%9F%E4%B8%BA%E9%9B%86%E5%90%88A%2C%E6%B1%82%E9%9B%86%E5%90%88AM%EF%BC%9D%EF%BD%9Ba%7C%E4%BD%BFY%3E0%E5%AF%B9%E4%BB%BBx%E5%B1%9E%E4%BA%8EA%E6%81%92%E6%88%90%E7%AB%8B%7D%E4%B8%80%E7%A7%8D%E6%98%AF%E5%88%86%E5%AD%90%E5%88%86%E6%AF%8D%E9%83%BD%E5%A4%A7%E4%BA%8E0%E8%A7%A3%E4%B8%8D%E7%AD%89%E5%BC%8F%E5%BE%972%E7%AD%94%E6%A1%88%E8%BF%98%E6%9C%89%E4%B8%80%E7%A7%8D%E6%98%AF%E5%88%86%E5%AD%90%E5%88%86%E6%AF%8D%E6%9C%89%E7%9B%B8%E5%90%8C%E9%9B%B6%E7%82%B9%E8%A7%A3%E5%BE%97a%3D-2+%E8%AF%B7%E8%A7%A3%E9%87%8A%E4%B8%80%E4%B8%8B%E4%BB%80%E4%B9%88%E5%8F%AB%E6%9C%89%E7%9B%B8)
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