ex 6+6\":- Consider the function f(a:) : (a) f'(w) = (b) j is increasing for a: E (c) f is decreasing for x E (d) The local minima of f occur at a: : (e) The local maxima of f occur at no : (f) f"(w) : (g) f is concave up for m E (h) f is concave down for m E (i) The inflection points of 3" occur at x : Note: Input U, infinity, and -infinity for union, 00, and 00, respectively. If there are multiple answers, separate them by commas. If there is no answer, input none