-4
The functions F(x)=|x-A|, G(x)=x^2+2A+1 (A is a positive constant, and the intersection of the graphs of the functions F(x) and G(x) are equivalent to the y-axis
Find the value of A
Find the increasing interval of the function F(x) +G(x)
If n is a positive integer, check that 10^F(n).4/5^G(n)<...