2020年高考数学(文)一轮复习讲练测专题1.4集合与常用逻辑用语(单元测试)含解析.pdf

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1、第一单元单元测试【满分:100 分时间:90 分钟】一、选择题(本大题共18 小题,每小题3 分,共 54 分)1(2019 福建漳州一中模拟)已知集合AxR|x1x0,则满足 AB 1,0,1 的集合 B 的个数是()A2 B3 C4 D9【答案】C【解析】解方程x1x0,得 x1 或 x 1,所以 A1,1,又 AB 1,0,1,所以 B0 或 0,1或0,1或0,1,1,集合 B 共有 4 个2(2019 江苏扬州二中模拟)已知集合Ax|(x4)(x5)0,Bx|yln(x2),则 A(?RB)()A(,4)B5,)C5,4 D(5,4)【答案】C【解析】由题意得 A x|5 x 4,B

2、 x|x20 x|x2,所以?RBx|x 2,A(?RB)x|5 x4故选 C.3(2019 浙江衢州一中模拟)设全集 UR,集合 Ax|x 3,Bx|0 x5,则(?UA)B()Ax|0 x3 Bx|0 x 3Cx|0 x 3 D x|0 x3【答案】D【解析】由题意得?UA x|x3,所以(?UA)Bx|0 x3,故选 D.4(2019 湖南长沙实验中学模拟)已知集合A1,2,3,Bx|x23x a0,aA,若 A B?,则 a 的值为()A1 B2 C3 D1 或 2【答案】B【解析】当a1 时,x23x 10,无整数解,则AB?;当 a2 时,B1,2,A B1,2?;当 a3第 1

3、页,共 8 页时,B?,A B?.因此实数a2.5.(2019辽宁鞍山一中模拟)设全集 U R,集合 Ax|x22x30,B x|x10,则图中阴影部分所表示的集合为()Ax|x 1 或 x 3Bx|x1 或 x 3Cx|x 1Dx|x 1【答案】D【解析】图中阴影部分表示集合?U(AB),又 Ax|1x1,?U(AB)x|x 1,故选 D.7(2019 重庆巴蜀中学调研)定义在 R 上的可导函数f(x),其导函数为f(x),则“f(x)为偶函数”是“f(x)为奇函数”的()A充分不必要条件B必要不充分条件C充要条件D既不充分也不必要条件【答案】B【解析】f(x)为奇函数,f(x)f(x)f(

4、x)f(x)f(x),f(x)f(x),即 f(x)为偶函数;反之,若 f(x)为偶函数,如f(x)3x2,f(x)x31 满足条件,但f(x)不是奇函数,所以“f(x)为偶函数”是“f(x)为奇函数”的必要不充分条件故选B.8(2019 山西大同一中模拟)“若 a2 或 a 2,则 a24”的否命题是()A若 a2,则 a24 B若 a2,则 a24 C若 2a2,则 a24 D若 a2,则 a24【答案】C【解析】将原命题的条件和结论同时否定之后可得否命题,故原命题的否命题为“若 2a2,则 a24”故选C.9(2019 湖北五校联考)已知直线l1:mx2y10,l2:x(m1)y10,则

5、“m2”是“l1平行于 l2”的()A充分不必要条件第 2 页,共 8 页文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:

6、CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码

7、:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编

8、码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档

9、编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文

10、档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7

11、文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q

12、7B必要不充分条件C充要条件D既不充分也不必要条件【答案】C【解析】由直线l1与直线 l2平行得 m(m1)1(2),得 m2 或 m 1,经验证,当m 1 时,直线l1与 l2重合,舍去,所以“m2”是“l1平行于 l2”的充要条件,故选C.10(2019 北京西城区模拟)已知:p:x k,q:(x1)(2x)0,如果 p 是 q 的充分不必要条件,则实数k 的取值范围是()A2,)B(2,)C1,)D(,1【答案】B【解析】由q:(x1)(2x)0,得 x2,又 p 是 q 的充分不必要条件,所以k2,即实数 k 的取值范围是(2,),故选 B.11(2019 陕西咸阳一中模拟)已知 pm

13、 1,q:直线 x y0 与直线 xm2y0 互相垂直,则 p 是 q 的()A充分不必要条件B必要不充分条件C充要条件D既不充分也不必要条件【答案】A【解析】由题意得直线xm2y 0 的斜率是 1,所以1m2 1,m 1.所以 p 是 q 的充分不必要条件故选A.12(2019湖南湘潭一中模拟)已知命题p:若复数 z 满足(zi)(i)5,则 z6i;命题 q:复数1i1 2i的虚部为15i,则下面为真命题的是()A(p)(q)B(p)qCp(q)D pq【答案】C【解析】由已知可得,复数z 满足(zi)(i)5,所以 z5 ii6i,所以命题p 为真命题;复数1i12i3i5,其虚部为15

14、,故命题 q 为假命题,命题q 为真命题,所以p(q)为真命题,故选C.13(2019 山西太原一中一模)已知命题 p:?x0R,x20 x010;命题 q:若 a1b.则下列为真命题的是()第 3 页,共 8 页文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1

15、C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU

16、1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 H

17、U1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10

18、HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10

19、 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P1

20、0 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P

21、10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7ApqBp(q)C(p)qD(p)(q)【答案】B【解析】因为x2 x1 x122340,所以 p 为真命题,则 p 为假命题;当a 2,b1 时,1a0,2xa0.若“p”和“pq”都是假命题,则实数a 的取值范围是()A(,2)(1,)B(2,1 C(1,2)D(1,)【答案】C【解析】方程x2ax10 无实根等价于 a240,即 2a0,2xa0 等价于 a2x在(0,)上恒成立,即a1.因为“p”是假命题,则p 是真命题,又“pq”是假命题,则q

22、 是假命题,2a1,得 1a3,BAx|3 x0,所以 A*B3,0)(3,)20(2019 河南商丘一中模拟)设 x表示不大于x 的最大整数,集合 Ax|x22x3,B x|182x8,则 A B_.【答案】1,7【解析】因为不等式182x8 的解为 3x3,所以 B(3,3)若 xAB,则x22x3,3x3,所以 x只可能取值 3,2,1,0,1,2.若 x 2,则 x23 2x0,没有实数解;若x 1,则 x21,得 x 1;若x 0,则x23,没有符合条件的解;若x1,则 x25,没有符合条件的解;若x 2,则 x27,有一个符合条件的解,x7.因此,A B1,7第 5 页,共 8 页

23、文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q

24、7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5

25、Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G

26、5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10

27、G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y1

28、0G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y

29、10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q721(2019 湖南常德一中模拟)条件 p:1xa,若 p 是 q 的充

30、分不必要条件,则a 的取值范围是_【答案】(,1)【解析】p:x1,若 p 是 q 的充分不必要条件,则p?q,但 q?/p,也就是说,p 对应的集合是q 对应的集合的真子集,所以a1.22(2019 安徽六安一中模拟)若命题 p:存在 xR,ax24xa2x21 是假命题,则实数a 的取值范围是_【答案】2,)【解析】若命题p:存在 x R,ax24xa0,16aa,解得 a2.三、解答题(本大题共4 小题,共40 分)23(2019 云南曲靖一中模拟)若集合 A(x,y)|x2 mxy20,xR,B(x,y)|xy10,0 x2,当A B?时,求实数m 的取值范围【解析】集合 A(x,y)

31、|x2mxy20,xR (x,y)|yx2 mx2,xR,B(x,y)|xy10,0 x2(x,y)|y x1,0 x2,A B?等价于方程组yx2mx2,yx 1在 x0,2上有解,即x2mx2 x1 在0,2上有解,即 x2(m1)x1 0 在 0,2上有解,显然x 0 不是该方程的解,从而问题等价于(m1)x1x在(0,2上有解又当 x(0,2时,1xx2(当且仅当1xx,即 x1 时取“”),(m1)2,m 1,即 m 的取值范围为(,124(2019 山东泰安一中模拟)已知集合Ax|x23x 20,B x|x22(a1)xa250(1)若 AB 2,求实数a 的值;(2)若 ABA,

32、求实数 a 的取值范围【解析】(1)Ax|x23x2 01,2,AB2,2B,2 是方程 x22(a 1)xa250 的根,a2 4a3 0,a 1 或 a 3.经检验 a 的取值符合题意,故 a 1或 a 3.第 6 页,共 8 页文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O

33、6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7

34、O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W

35、7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5

36、W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK

37、5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:C

38、K5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:

39、CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7(2)AB A,B?A.当 B?时,由 4(a1)24(a25)0,解得 a3;当 B?时,由 B1 或 B1,2,可解得a?;由 B2,可解得a 3.综上可知,a 的取值范围是(,3.25(2019 湖南长郡中学模拟)已知函数f(x)4sin24x 23cos 2x 1,p:4 x2,q:|f(x)m|2,若 p 是 q的充分不必要条件,求实数m 的取值范围【解析】化简解析式,得f(x)41cos 24x223cos 2x 12si

40、n 2x 2 3cos 2x 14sin(2x3)1.当4 x2时,62 x323,则12 sin2x31,所以 f(x)3,5当|f(x)m|2 时,f(x)(m2,m2)又 p 是 q 的充分不必要条件,所以m25,所以 3m5.即实数 m 的取值范围为(3,5).26(2019 辽宁大连一中模拟)设 tR,已知命题p:函数 f(x)x2 2tx1 有零点;命题q:?x1,),1xx4 t21.(1)当 t 1时,判断命题q 的真假;(2)若 pq 为假命题,求t 的取值范围【解析】(1)当 t1 时,1xxmax0,1x x3 在 1,)上恒成立,故命题q 为真命题(2)若 pq 为假命

41、题,则p,q 都是假命题当 p 为假命题时,(2t)240,解得 1t1;当 q 为真命题时,1xxmax4 t21,即 4t210,解得 t 12或 t12,当 q 为假命题时,12t12,第 7 页,共 8 页文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1

42、C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU

43、1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 H

44、U1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10

45、HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10

46、 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P1

47、0 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P

48、10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7t 的取值范围是12,12.第 8 页,共 8 页文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 Z

49、D3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2

50、ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2 ZD3I3Y10G5Q7文档编码:CK5W7O6S9P10 HU1C4K10C8H2

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