1. The problem statement, all variables and given/known data Prove that |sina| < |a| for all x≠0 and use the result to show that the only solution to the equation sinx=x is x=0. What happens if you try to find all intersections with a graphing calculator? 2. Relevant equations 3. The attempt at a solution I know for the first part you have to use MVT, but I've always been bad with the MVT, hence me being here :).