Can you help me with the following three problems. Thanks so much! :)

MAA MATHEMATICAL ASSOCIATION OF AMERICA 22fama201-03-04 / week_11_due_friday / 3 Previous Problem Problem List Next Problem Week 11 Due Friday: Problem 3 (1 point) A function with parameters a and b is given. Describe the critical points and possible points of inflection of f in terms of a and b. Assume a, b > 0. a f(x) 2+ 62 Critical point: 0 Possible points of inflection: (two answers) (smaller value) (larger value) 2 n 3 Note: You can earn partial credit on this problem. m 4 Preview My Answers Submit Answers em 5 You have attempted this problem 2 times. lem 6 Your overall recorded score is 33%. You have unlimited attempts remaining. Nov 3 5:05MAA Logged in as cgr010. Log MATHEMATICAL ASSOCIATION OF AMERICA 22fama201-03-04 / week_11_due_friday / 4 Previous Problem Problem List Next Problem Week 11 Due Friday: Problem 4 (1 point) Let f(x) = / cos(er* cos(z) f'(x) = x4(e^(x~4)cosx)sin(e^(x4cosx))sinx/(2cos(e^(x^4cosx)"1/2) Preview My Answers Submit Answers You have attempted this problem 1 time. Your overall recorded score is 0%. You have unlimited attempts remaining. Nov 3 5:05 +MAA Logged in as cgro10. MATHEMATICAL ASSOCIATION OF AMERICA 22fama201-03-04 / week_11_due_friday / 5 Previous Problem Problem List Next Problem Week 11 Due Friday: Problem 5 (1 point) Let x3 + y' = 126. Find y"(x ) at the point (5, 1). y"(5) = -252 Preview My Answers Submit Answers You have attempted this problem 3 times. Your overall recorded score is 0%. You have unlimited attempts remaining. 5 16 C Nov 3 5:05