If \(\rm \int_0^a \left[f(x)+f(-x)\right]dx=\int_{-a}^{\ \ a} g(x)\ dx \), then what is g(x) equal to?
1
f(x)
2
f(-x) + f(x)
3
-f(x)
4
None of the above.
If \(\rm \int_0^a \left[f(x)+f(-x)\right]dx=\int_{-a}^{\ \ a} g(x)\ dx \), then what is g(x) equal to?