For all problems, use MATLAB scripts to save it. Upload the .m file. Generate a

separate pdf with the solutions and upload it as a report.

1. Suppose x is an array between 0 and . Use MATLAB to compute the array

y1 and y2 that results from the function: y1 = 7 sin(4x), y2 = 7cos(4x). Use

MATLAB to plot y1 and y2

a. In two different figures

b. In same figure using hold on command. Put a legend inside indicating

y1 and y2. Change colors and markers to distinguish two functions.

c. Utilizing subplot command and generating a 2 by 1 subplot.

d. Use function plot (fplot command) to generate the functions in two

different figures.

e. In same figure but with two different y-axis. Scale the x axis from -1 to

13; and y-axis from -8 to 8.

Put x-axis label as Time and y-axis label as Amplitude. Put appropriate

title of the graphs. Put legends where necessary. Increase linewidth if needed.

Increase the font sizes of the labels to make the figure look better.

2. Use the same x array from Problem 1, generate a 3d plot using plot3 command

in MATLAB. Use x in the x-axis, y1 and y2 in y, and z axis respectively.

3. Suppose x is an array where x = 1, 1.2,1.4, , 5. Generate a bar plot and a

pie chart. Include necessary labels in your figure.

4. Use MATLAB to find the roots of 133 1822 184 + 2503 = 0. Now,

plot equation for a range of -10

the x-axis. Identify the crossing points and match it with your roots to validate your answers.