8- Add and subtract the following numbers without converting them into decimal. ● Binary numbers (10101111); and (10010101): Binary numbers (11001001); and (10110101) • Hexadecimal numbers (71)16 and (2C)16

Matlab code please Question 1. Plot the following three functions. The x range is from -2π to 2π, use an increment of π/20. Add labels to the x and y axes, a title, and a grid for each part, a-c. Please paste in both your code and your plots for each part. [For help, watch this video: https://youtu.be/9GhUXhAOja4 ] s_1 (x)= cos(x) s_2 (x)=2cos(2x) s_3 (x)=3cos(3x) Plot all 3 functions in the same plot. Use different colors and different line styles to distinguish the curves. Add a legend. Plot them in three separate plots. All plots should be in the same row. Plot them in three separate plots. All plots should be in the same column.

Please review the image attached.

The letters are printed on the piece of paper using an embossed steel band, which also serves as a line printer. Give a general description of the band printer.