Find the relative extrema, if any, of the function. Use the second derivative test, if applicable. (If an answer does not exist, enter DNE.)
g(x)=x^3-6x
relative maximum (x, y) = ( , )
relative minimum (x, y) = ( , )
g(x)=x^3-6x
relative maximum (x, y) = ( , )
relative minimum (x, y) = ( , )