设全集为R,已知A={x丨-2<x<3},B={x²+2x-8>0},M={x丨x²-4ax+3a≤0},若CR(A∪B)⊂M,求实数a的取值范围.
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![设全集为R,已知A={x丨-2<x<3},B={x²+2x-8>0},M={x丨x²-4ax+3a≤0},若CR(A∪B)⊂M,求实数a的取值范围.](/uploads/image/z/11949814-46-4.jpg?t=%E8%AE%BE%E5%85%A8%E9%9B%86%E4%B8%BAR%2C%E5%B7%B2%E7%9F%A5A%3D%EF%BD%9Bx%E4%B8%A8-2%EF%BC%9Cx%EF%BC%9C3%EF%BD%9D%2CB%3D%EF%BD%9Bx%26%23178%3B%2B2x-8%EF%BC%9E0%EF%BD%9D%2CM%3D%EF%BD%9Bx%E4%B8%A8x%26%23178%3B-4ax%2B3a%E2%89%A40%EF%BD%9D%2C%E8%8B%A5CR%EF%BC%88A%E2%88%AAB%EF%BC%89%26%238834%3BM%2C%E6%B1%82%E5%AE%9E%E6%95%B0a%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4.)
设全集为R,已知A={x丨-2<x<3},B={x²+2x-8>0},M={x丨x²-4ax+3a≤0},若CR(A∪B)⊂M,求实数a的取值范围.
设全集为R,已知A={x丨-2<x<3},B={x²+2x-8>0},M={x丨x²-4ax+3a≤0},若CR(A∪B)⊂M,求实数a的取值范围.
设全集为R,已知A={x丨-2<x<3},B={x²+2x-8>0},M={x丨x²-4ax+3a≤0},若CR(A∪B)⊂M,求实数a的取值范围.
a≤-16/19.
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