x
1
2
3
f(x)
g(x)
则g(1)的值为;当g[f(x)]=2时,x=.
(Ⅰ)若m=1,求A∪B;
(Ⅱ)若A∩B=A,求实数m的取值范围.
(Ⅰ)求M;
(Ⅱ)当x∈M时,求g(x)=4x-2x+1+2的值域.
(Ⅰ)若该函数是偶函数,求实数k及f(log32)的值;
(Ⅱ)若函数g(x)=x+log3f(x)有零点,求k的取值范围.
(Ⅰ)求f(x)的解析式;
(Ⅱ)当x≥0时,f(x)≥mx-3恒成立,求实数m的取值范围.
(Ⅰ)求常数k的值;
(Ⅱ)若a>1,试判断函数f(x)的单调性,并加以证明;
(Ⅲ)若a=2,且函数g(x)=a2x+a-2x-2mf(x)在[0,1]上的最小值为1,求实数m的值.