need help with Q#5 (3) using Matlab

FoFO vary from Oto 2%, in steps of (0.01)T . Define an array of distances R1-5*cos(4 0) (a) make a polar plot of r versus ? with a red color line. using the same array as in (a) Q#5 Write a script which performs the following operations (in sequence) (i) creates a 20 x 40 array, A, in which each element (or entry) in rows l throughT is assigned the value 1 and each element in rows 11 through 20 is assigned the value 2; creates a new 20x40 array, B, which is the same as A except row 11 for which B(11j) 1/j, for 1 3j3 40; (ii) ii) creates a new 20 x 41 array, C, which is the same as B for columns 1 through 40 but also includes a column 41 in which all elements are assigned the value 3