4. Consider the two sinusoidal signals X1(t)=3cos(at + /2) and X2(t)=(3+j2)cos(wt). Let P(t) be the sum...

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4. Consider the two sinusoidal signals X1(t)=3cos(at + /2) and X2(t)=(3+j2)cos(wt). Let P(t) be the sum of the two signals i.e., P(t)=x1(t)+x2(t). Use only the method of phasor representation to: (a) Find the total complex phasor representation (XT) of P(t). (b) Find P(t). (22) 4. Consider the two sinusoidal signals X1(t)=3cos(at + /2) and X2(t)=(3+j2)cos(wt). Let P(t) be the sum of the two signals i.e., P(t)=x1(t)+x2(t). Use only the method of phasor representation to: (a) Find the total complex phasor representation (XT) of P(t). (b) Find P(t). (22)

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