1.
Let f(x)={x2,2x<01,0x2f(x) = \begin{cases} x^2, & -2 \le x < 0 \\ -1, & 0 \le x \le 2 \end{cases} and g(x)=f(x)+f(x)g(x) = |f(x)| + f(|x|). Then, in the interval (2,2)(-2, 2), gg is: