Question

f(x)=2÷(2^x十1)十m,f(x)≤m^2,x∈R恒成立,求m的取值范围。

Answer 1

问：f(x)=2÷(2^x十1)十m,f(x)≤m^2,x∈R恒成立,求m的取值范围。