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设全集为实数集R，集合A＝{x|x2＜4}，B＝{x|3x＞1}，则A∩（∁RB）＝（ ）
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高三下学期数学《》真题及答案
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设全集U.是实数集R.M.＝{x|x2＞4}N.＝{x|1＜x＜3}则图中阴影部分表示的集合是
{x|－2≤x＜1}
{x|1＜x≤2}
{x|－2≤x≤2}
{x|x＜2}
设函数的定义域为集合A.已知集合B.={x|1＜x＜3}C.={x|x≥m}全集为R..1求∁R.A
全集为实数集R.集合M={x||x|≤3}集合N={x|x＜2}则∁R.M.∩N=
{x|x＜﹣3}
{x|﹣3＜x＜2}
{x|x＜2}
{x|﹣3≤x＜2}
已知集合A.＝{x|3≤x
设全集U.是实数集R.M={x|x＜﹣2或x＞2}N={x|x2﹣4x+3＜0}则图中阴影部分所表示
{x|﹣2≤x＜1}
{x|﹣2≤x≤2}
{x|1＜x≤2}
{x|x＜2}
设集合A.＝{x|x＋m≥0}B.＝{x|－2
设全集为实数集R.函数fx=lg2x﹣1的定义域为A.集合B.={x||x|﹣a≤0}a∈R.Ⅰ若a
已知集合A.={x|3≤x≤7}B.={x|2＜x＜10}C.={x|x＜a}全集为实数集R..1求
已知集合A.＝{x|3≤x
已知集合A.＝{x|3≤x
设全集为实数集R.集合A.＝{x|3≤x
设全集U.＝R.集合A.＝{x|x≤1或x≥3}集合B.＝{x|k
设集合A.＝{x|x＋m≥0}B.＝{x|－2
设全集U.是实数集R.M={x|x2＞4}N={x|1＜x＜3}则图中阴影部分所表示的集合是
{x|﹣2≤x＜1}
{x|﹣2≤x≤2}
{x|1＜x≤2}
{x|x＜2}
设集合A.＝{x|x＋m≥0}B.＝{x|－2＜x＜4}全集U.＝R.且∁U.A.∩B.＝∅求实数m
.设全集为R.集合A.＝{x|3≤x
已知集合A.＝{x|x2－2x－8≤0x∈R}B.＝{x|x2－2m－3x＋m2－3m≤0x∈Rm∈
设全集U.是实数集R.M.＝{x|x2＞4}N.＝{x|x≥3或x＜1}都是U.的子集则图中阴影部分
{x|－2≤x＜1}
{x|－2≤x≤2}
{x|1＜x≤2}
{x|x＜2}
设全集U=R集合A.={x|m﹣2＜x＜m+2m∈R}集合B.={x|﹣4＜x＜4}.Ⅰ当m=3时求
设全集是实数集R.集合A.={x|xx﹣3＜0}B.={x|x≥a}.1当a=1时求∁R.A.∪B.
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