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Sinusoid Plots and Conversions: Consider x(t)=2 \cos (\omega t+5)+8 \cos (\omega t+9)+4 \cos (\omega t) where the phases have units of radians. Express x(1) in the form x(t)= Acos(@t +

ø) b) For @ = 2n(30) use MATLAB to make a plot of x(t) in both forms and show that the graphs are identical.Plot two periods of both signals and use the subplot command to two plots on the same figure. Be sure to label all axes and submit your figure and your code.

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