集合复数算法初步复习题 胡红
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专题一 集合复数算法初步复习题
1.若集合{}
|2A x x =≤,{}
|B x x a =≥,满足{2}A
B =,则实数a = .
2.设集合{|32}M m m =∈-< A .{}01, B .{}101-,, C .{}012,, D .{}1012-,,, 3.已知全集U =R ,集合{} |23A x x =-≤≤,{}|14B x x x =<->或,那么集合 )(B C A U 等于( ) A .{} |24x x -<≤ B .{} |34x x x 或≤≥ C .{} |21x x -<-≤ D .{} |13x x -≤≤ 4.设集合|0{8}x x N U =∈<≤,{1,2,4,5}S =,{3,5,7}T =,则=)(T C S U ( ) A .{1,2,4} B .{1,2,3,4,5,7} C .{1,2} D .{1,2,4,5,6,8} 5.已知全集{1 2345}U =,,,,,集合2{|320}A x x x =-+=,{|2}B x x a a A ==∈,,则集合)(B A C U 中元素的个数为( ) A .1 B .2 C .3 D .4 6.设集合21 {|2},{1}2 A x x B x x =-<<=≤,则A B = ( ) A .{12}x x -≤< B .1 {|1}2 x x -<≤ C .{|2}x x < D .{|12}x x ≤< 7.已知集合M =﹛x|-3<x ≤5﹜,N =﹛x|x <-5或x >5﹜,则M N =( ) A .﹛x|x <-5或x >-3﹜ B .﹛x|-5<x <5﹜ C .﹛x|-3<x <5﹜ D .﹛x|x <-3或x >5﹜ 8.若全集{1,2,3,4,5,6},{2,3},{1,4}U M N ===,则集合{5,6}等于( ) A .M N ⋃ B .M N ⋂ C .()()n n C M C N ⋃ D .()()n n C M C N ⋂ 9.已知集合{}{}0,1,2,3,4,1,3,5,,M N P M N ===则P 的子集共有( ) A .2个 B .4个 C .6个 D .8个 10.已知全集U =R ,A ={x |x ≤0},B ={x |x ≥1},则集合∁U (A ∪B )=( ) A .{x |x ≥0} B .{x |x ≤1} C .{x |0≤x ≤1} D .{x |0 A.(0,1) B.(0,2] C.(1,2) D.(1,2] 12.已知集合{0,1,2}A =,则集合{|,}B x y x A y A =-∈∈种元素的个数是( ) A.1 B.3 C.5 D.9 13.设全集为R ,函数()f x =M ,则R M C 为 ( ) A.{1,1]- B.(1,1)- C.(,1][1,)-∞-⋃+∞ D.(,1)(1,)-∞-⋃+∞ 14.设集合{1,2,3},{4,5},{|,,}A B M x x a b a A b B ====+∈∈,则M 中元素的个数为 ( ) A.3 B.4 C.5 D.6 15. 集合2{|lg 0},{|4}M x x N x x =>=≤,则M N ⋂= ( ) A.(1,2) B.[1,2) C.(1,2] D.[1,2] 16.已知集合2{1,2,3,4},{|,}A B x x n n A ===∈,则A B ⋂= ( ) A.{1,4} B.{2,3} C.{9,16} D.{1,2} 17.设集合{|3213}A x x =-≤-≤,集合B 为函数lg(1)y x =-的定义域,则A B ⋂=( ) A.(1,2) B.[1,2] C.[1,2) D.(1,2] 18.已知集合A ={x |x 2 -2x -3≥0},B ={x |-2≤x <2},则A ∩B = ( ) A .[-2,-1] B .[-1,2) B .[-1,1] D .[1,2) 19.已知集合A ={x |x 2-x -2≤0},集合B 为整数集,则A ∩B = ( ) A .{-1,0,1,2} B .{-2,-1,0,1} C .{0,1} D .{-1,0} 20. 设i 是虚数单位,复数i 3 + 2i 1+i =________. 21.复数z =(3-2i)i 的共轭复数z 等于________. 23.i 为虚数单位,⎝ ⎛⎭ ⎪ ⎫1-i 1+i 2 =________. 24.满足 z +i z =i(i 为虚数单位)的复数z =________. 25.若复数z 满足z (1+i)=2i(i 为虚数单位),则|z |=________. 26.设复数z 满足(z -2i)(2-i)=5,则z =________. 27.设z =10i 3+i ,则z 的共轭复数为________. 28.设z =1 1+i +i ,则|z |=________. 29.设复数z 1,z 2在复平面内的对应点关于虚轴对称,z 1=2+i ,则z 1z 2________. 30.已知a ,b ∈R ,i 是虚数单位,若a -i 与2+b i 互为共轭复数,则(a +b i)2 =________. 31.已知复数z =2-i ,则z ·z - 的值为________. 32.复平面内表示复数i(1-2i)的点位于_______. 33.实部为-2,虚部为1的复数所对应的点位于复平面的_______. 34.复数3+i i 2(i 为虚数单位)的实部等于________. 35. z -是z 的共轭复数,若z +z -=2,(z -z - )i =2(i 为虚数单位),则z =________. 36.设复数z 1,z 2在复平面内的对应点关于虚轴对称,z 1=2+i ,则z 1z 2________. 37.执行程序框图,输出S 的结果为________. 38.执行程序框图,若0.8p =,则输出的n = . (第38题) 40.执行程序框图,输出的T= . 41.执行程序框图,若输入4x =,则输出y 的值为___________________.