7". {11] points] Two runners start a race at the same time and nish in a tie. Prove that at some time during the race they have the same speed. Hint: Try to make a oonnection between this problem, and one of the important theorems you learned in this ooursel When you want to use the relevant theorem, make sure that you will explicitly cheek all the conditions of the theorem. 3. {11] points] Using the Mean 1|lu'ralne Theorem, prove that #1 + :52 d: l + I for any I 2:- U. Make sure to check all the newssary oonditions of the Mean Value Theorem