1.設(shè)全集U={-2,-1,0,1,2},A={-2,-1,0},B={0,1,2},則(?UA)∩B=________.
2.已知集合P={x|x2≤1},M=[a,a+1].若P∪M=P,則a的取值范圍是_______.
4.設(shè)集合A={1,2,3,4,5,6},B={4,5,6,7,8},則滿足S?A且S∩B=?的集合S的個數(shù)是________.
5.(2018年全國卷Ⅱ)已知集合A={(x,y)|x2+y2≤3,x∈Z,y∈Z},則A中元素的個數(shù)為________.
6.已知實(shí)數(shù)a≠0,函數(shù)f(x)=若f(2-a)=-f(2+a),則a的值為________.
7.已知函數(shù)f(x)=ex-1,g(x)=-x2+4x-3,若?a∈R,有f(a)=g(b),則實(shí)數(shù)b的取值范圍為____________.
8.已知函數(shù)f(x)=
9.已知函數(shù)f(x)=函數(shù)g(x)=f(x)-lnx零點(diǎn)的個數(shù)是________.
10.(2020年蘇州中學(xué)模擬)已知集合A={x|1<ax<2},B={x||x|<1},滿足A?B,則實(shí)數(shù)a的取值范圍是________.
11.已知a∈Q,集合A={0,2,4a},B={1,a2},求滿足A∪B={0,1,2,b}的集合A與B的交集.
12.(2019年蘇州市期中)已知函數(shù)f(x)=x2+mx+n(m,n∈R),f(0)=f(1),且方程x=f(x)有兩個相等的實(shí)數(shù)根.
(1)求函數(shù)f(x)的解析式;
(2)當(dāng)x∈[0,3]時,求函數(shù)f(x)的值域.
(1)當(dāng)a=b=1時,證明:f(x)不是奇函數(shù);
(2)當(dāng)f(x)是奇函數(shù)時,求a,b的值;
(3)當(dāng)f(x)是奇函數(shù)時,證明對任何實(shí)數(shù)x,c,都有f(x)<c2-3c+3.
14.已知函數(shù)
(1)求f(x)的值域;
(2)設(shè)函數(shù)g(x)=ax-2,x∈[-2,2].若對于任意x1∈[-2,2],總存在x0∈[-2,2],使g(x0)=f(x1)成立,求實(shí)數(shù)a的取值范圍.