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Problem 4 [ 4 + 4 + 4 = 12 morks] a) Let an, an, by, by be the values that are displayed in the Excel spreadsheet as follows Value Cell it is displayed in J9 ba J10 Let 21, 22, WE C be defined by 21 = 12 thi, 27:= 12 + by Write w in the form at bi where a, belR. Then find the modulus of w, and write win polar form. b ) Let co be the number displayed in cell K12 of the Excel spreadsheet, and let ca be the number from cell K13 . Set P (x ) : = x 2 + cox + co . Find the complex roots of PW), written in the form at bi with a bell. () Let as be the number displayed in cell J15 of the Excel spreadsheet, and let by be the number from cell K15. Set a= = + i E C. Compute 28 by converting a into po- lov form, applying De Moivre's Theorem, and converting the result back into the form at bi.Details for 21 from Problem 4(a): _ 5 Details for 22 from Problem 4(a): _ -2: :Constant term of the polynomial in Problem 4(b): Linear term of the polynomial in Problem 4(b): Details for z from Problem 4(c}: 1