设全集U=R,集合A={X/Y=log2底(-X方+2x+3)},B={Y/Y=2的X方,(-无穷,2)},C={X/a小于X小于2a-1}(1) 求A B\(2) 若C包含于(A交B),求实数a的取值范围
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![设全集U=R,集合A={X/Y=log2底(-X方+2x+3)},B={Y/Y=2的X方,(-无穷,2)},C={X/a小于X小于2a-1}(1) 求A B\(2) 若C包含于(A交B),求实数a的取值范围](/uploads/image/z/1092375-63-5.jpg?t=%E8%AE%BE%E5%85%A8%E9%9B%86U%3DR%2C%E9%9B%86%E5%90%88A%3D%7BX%2FY%3Dlog2%E5%BA%95%EF%BC%88-X%E6%96%B9%2B2x%2B3%29%7D%2CB%3D%7BY%2FY%3D2%E7%9A%84X%E6%96%B9%2C%EF%BC%88-%E6%97%A0%E7%A9%B7%2C2%EF%BC%89%7D%2CC%3D%7BX%2Fa%E5%B0%8F%E4%BA%8EX%E5%B0%8F%E4%BA%8E2a-1%7D%281%29+%E6%B1%82A+B%5C%282%29+%E8%8B%A5C%E5%8C%85%E5%90%AB%E4%BA%8E%EF%BC%88A%E4%BA%A4B%29%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U=R,集合A={X/Y=log2底(-X方+2x+3)},B={Y/Y=2的X方,(-无穷,2)},C={X/a小于X小于2a-1}(1) 求A B\(2) 若C包含于(A交B),求实数a的取值范围
设全集U=R,集合A={X/Y=log2底(-X方+2x+3)},B={Y/Y=2的X方,(-无穷,2)},C={X/a小于X小于2a-1}
(1) 求A B\
(2) 若C包含于(A交B),求实数a的取值范围
设全集U=R,集合A={X/Y=log2底(-X方+2x+3)},B={Y/Y=2的X方,(-无穷,2)},C={X/a小于X小于2a-1}(1) 求A B\(2) 若C包含于(A交B),求实数a的取值范围
1、A={X/-1