Step 1.8 Now lets return the cosine phase angle back to 0 radians, and plot both the sine and cosine waves onto a single graph for comparison. The red plot is the cosine wave while the blue plot is the sine wave. The cosine plot leads the sine plot by 90 degrees or /2 radians. (Note: Make sure to close the plot window before running the script!) clc clear A1=5 A2=5 f1=100 f2=100 sphase=0 bphase=0 t=0:0.0001:0.01 s=A1*sin((2*pi*f1*t)+sphase) b=A2*cos((2*pi*f2*t)+bphase) yyaxis left %this command places the y scale on the left side plot(t,s) yyaxis right %this command places the y scale on the right side plot(t, b) title('Sine and Cosine Waveforms') 6 Step 1.9 Using the MatLab code in step 1.8, modify the sine sphase, by +90 degrees or +pi/2 radians, and keep the cosine wave, bphase, at 0 degrees phase angle. Question 1.9 Select the best answer regarding your observation from step 1.9. a. both s(t) and b(t) appear as identical sine waves b. both s(t) and b(t) appear as identical cosine waves c. s(t) appears as a sine wave while b(t) appears as a cosine wave d. s(t) appears as a cosine wave while b(t) appears as a sine wave Plot 1.9 - Sine Cosine Wave Plot Submission: Submit (i.e., copy/paste) the MATLAB plots from step 1.9 above into the IT300 Virtual Lab Plot Submission document template. Note: After executing the plot command, go to the plot and perform a "copy figure" under the "Edit" menu. Paste this figure into the assignment "IT300 Virtual Lab Plot Submission v13" on Bb Assignments/Virtual LAB folder. Step 1.10 Now try plotting the following carrier waves with a(t) appearing on the left and b(t) appearing on the right. Place both plots onto a single graph as you did in steps 1.8 and 1.9. a(t) = 3sin(250t - ) b(t) = 8cos(500t + 0) Question 1.10 What are the differences between the two plots a(t) and b(t) from step 1.10? a. a(t) and b(t) have the same amplitudes b. a(t) has a higher frequency than b(t) c. a(t) and b(t) appear as identical plots d. For every single cycle for a(t), two cycles of b(t) are seen Plot 1.10 - Sine Cosine Wave Plot Submission: Submit (i.e., copy/paste) the MATLAB plots from step 1.10 above into the IT300 Virtual Lab Plot Submission .