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已知集合{a,b,c}={0,1,2},且下列三个关系:①a≠2;②b=2;③c≠0有且只有一个正确,则100a+10b+c等于 .
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高二下学期数学《》真题及答案
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已知集合{abc}={012}且下列三个关系①a≠2②b=2③c≠0有且只有一个正确则100a+10
已知集合
⊆{0,1,2},且集合A.中至少含有一个偶数,则这样的集合A.的个数为( ) A.6
5
4
3
已知集合
={x|x
2
-2x=0},
={0,1,2},则A.∩B.= ( ) A.{0,2}B.{0,1}
{0}
{0,1,2}
已知集合M.={01}则满足M.∪N.={012}的集合N.的个数是
2
3
4
8
设集合A.是由1-2a2-1三个元素构成的集合集合B.是由1a2-3a0三个元素构成的集合若A.=B
从0129十个数字中任意选出三个不同的数字求下列事件的概率A1=三个数字中不含0与5A2=三个数字中
已知集合A.是由三个元素a-22a2+5a12组成的且-3∈A.求实数a的值.
已知集合A={012}集合B={x|x﹣2<0}则A∩B=
{0,1}
{0,2}
{1,2}
{0,1,2}
已知集合
={x|x
2
-2x=0},
={0,1,2},则A.∩B.=( ) A.{0}B.{0,1}
{0,2}
{0,1,2}
已知集合A.含有三个元素2ab集合B.含有三个元素22ab2若A.与B.表示同一集合求ab的值.
已知集合A={012}且BA求集合B.
已知集合{abc}={012}且下列三个关系①a≠2②b=2③c≠0有且只有一个正确则100a+10
已知全集U.={012}且∁U.
={0},则集合A.=( ) A.{0,1,2}
{1,2}
U.
∅
已知集合P.中元素x满足x∈N且2
已知集合
={0,1,2},
={2,3},则集合A.∪B.=( ) A.{1,2,3}B.{0,1,2,3}
{2}
{0,1,3}
已知集合
={0,1,2},则集合
={x-y|x∈A.,y∈A.}中元素的个数是( ) A.1B.3
5
9
已知集合A.={012}则A.的子集的个数为.
5.00分已知集合{abc}={234}且下列三个关系a≠3b=3c≠4有且只有一个正确则函数的值
已知集合A={012}B={x|1<x<4}则集合A∩B=
{2}
{1,2}
{0,1,2}
{0,1,2,3}
已知集合A.={012}则满足A.∪B.={012}的集合B.的个数为.
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