已知集合A={X| X²-(4m+6)x+4m²=0},B={0 ,0.5 ,1.5 ,6 },若A包含于B,求m的取值范围
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![已知集合A={X| X²-(4m+6)x+4m²=0},B={0 ,0.5 ,1.5 ,6 },若A包含于B,求m的取值范围](/uploads/image/z/2618095-31-5.jpg?t=%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%3D%EF%BD%9BX%7C+X%26%23178%3B-%284m%2B6%29x%2B4m%26%23178%3B%3D0%7D%2CB%3D%7B0+%2C0.5+%2C1.5+%2C6+%7D%2C%E8%8B%A5A%E5%8C%85%E5%90%AB%E4%BA%8EB%2C%E6%B1%82m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4)
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