(1)已知集合A={x|x^2+3x+10≥0},B={x|m+1≤x≤2m-1},若B包含于A,则实数m的取值范围为多少(2)A={x|-2≤x≤5},B{m+1≤x≤2m-4},B包含于A,求m的取值范围我说B包含于A别告诉我听不懂= B含于A呢?
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![(1)已知集合A={x|x^2+3x+10≥0},B={x|m+1≤x≤2m-1},若B包含于A,则实数m的取值范围为多少(2)A={x|-2≤x≤5},B{m+1≤x≤2m-4},B包含于A,求m的取值范围我说B包含于A别告诉我听不懂= B含于A呢?](/uploads/image/z/1559006-62-6.jpg?t=%281%29%E5%B7%B2%E7%9F%A5%E9%9B%86%E5%90%88A%3D%7Bx%7Cx%5E2%2B3x%2B10%E2%89%A50%7D%2CB%3D%7Bx%7Cm%2B1%E2%89%A4x%E2%89%A42m-1%7D%2C%E8%8B%A5B%E5%8C%85%E5%90%AB%E4%BA%8EA%2C%E5%88%99%E5%AE%9E%E6%95%B0m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E4%B8%BA%E5%A4%9A%E5%B0%91%282%29A%3D%7Bx%7C-2%E2%89%A4x%E2%89%A45%7D%2CB%7Bm%2B1%E2%89%A4x%E2%89%A42m-4%7D%2CB%E5%8C%85%E5%90%AB%E4%BA%8EA%2C%E6%B1%82m%E7%9A%84%E5%8F%96%E5%80%BC%E8%8C%83%E5%9B%B4%E6%88%91%E8%AF%B4B%E5%8C%85%E5%90%AB%E4%BA%8EA%E5%88%AB%E5%91%8A%E8%AF%89%E6%88%91%E5%90%AC%E4%B8%8D%E6%87%82%3D+B%E5%90%AB%E4%BA%8EA%E5%91%A2%EF%BC%9F)
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