2. (20x 8 160 Points) Write Matlab codes to determine the following series sums. Use both for and while loops a. 51015 .90 b. 2+4+8 16 200 d. 122+ 42 + 82 + 162+... 20 terms 3" (30 + 30 = 60 Points) Write a Matlab script using (a) conditional while, and (b) infinite while (1) loops to calculate the following series sum. Use the user-defined function myfact developed earlier to calculate the factorials. Include your myfact code. For an infinite series a good stopping criterion would be the condition abs (tn) s abs (suml) where tn and suml stand for current term and current sum respectively