Application Of Derivatives

Let \(f(x) = {a_0} + {a_1}{x^2} + {a_2}{x^4} + {a_3}{x^6} + ... + {a_n}{x^{2n}}\) be a polynomial in a real variable x with \(0 < {a_1} < {a_2} < {a_3} < .... < {a_n}\), the function f(x) has