(a) [3 Marks] State the Mean Value Theorem (in your answer booklet) by filling in the cor- rect words and expressions in the following statement for a function f on the interval [m, n]: Let f be continuous on the interval Then there exists at least one number c in and on the interval.. such that f'(c) = .......... (b) [7 Marks] Use the Mean Value Theorem to prove the inequality tana> for 0