Question 2: a. Let G be a group and a E G. Show that if |a| = n, then |a¹| = n. b. Without computing the orders, explain why the two elements 7 and 13 from U(15) must have the same order. (Hint: Use the result of question 2 - part a).

Q: 7. What is the value of (X-2)2 for the scores 2,3,5?

A: To find : ∑X-22 for the scores 2, 3, 5

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