3. (a)Given z1 = 5 cosx; Z2 = 2xsin6r; 23 + log x cos 2x Write a script file with subplot function to plot 21 between t-pipil, z2 between [o 2pi] and zB between [-1 5] in a 3 x 2 array of 6 panes such that z1,z2 and 23 are placed in the 20, 40 and 6 panes respectively. [10] b) What is the difference between a for loop and a while loop. Mrs G deposits $500,000 in a savings account in January 2022, which pays 7.5% interest per year. The average inflation rate is 3% per year. Determine the number of years her money will last by writing a MATLAB program, using a while loop if: She withdraws her money $30,000 once a year, starting from January 2023 She withdraws $30,000 plus an additional amount per year due to inflation, starting from January 2024 Show the flow-chart of the above program [15]