Looking for help on both please Problem 4 (6 points, CCO #1) a) Why does the absolute of the true relative error no longer decrease for N>35 in problem 2? b) Is the dominant (=largest) error when evaluating tan^-1(x) at x=0.9999 using myAtan with N=50 due to round-off error or truncation error (see results of problem 3)? Required submission: handwritten (or printed) answers. Problem 5 (9 points, CCO #1) What is the smallest possible value for N so that y=tan^-1(0.9999) evaluated using myAtan is exact when written as a half precision binary floating point number in engineering notation? Use decimal2binary developed in Module 1 to answer this question. Required submission: handwritten (or printed) answer. printout of any results generated by a script; printout of script (and any potential additional functions not submitted on Matlab Grader) used to solve this problem in the Gradescope submission.