Just need 5.16 answered and explained. Thanks!

ExERCISE 5.15. Use Euler's summation formula (previous exercise) to show that log(n!) = n log n-n + log n + O(1 ), . and from this, conclude that n-((n/oYVn). This is a weak form of Stirling's approximation: a sharper form states that n! ~ (n/oYV2n. ExERCISE 5.15. Use Euler's summation formula (previous exercise) to show that log(n!) = n log n-n + log n + O(1 ), . and from this, conclude that n-((n/oYVn). This is a weak form of Stirling's approximation: a sharper form states that n! ~ (n/oYV2n