Question: Problem 1 : Using the identity 2 c o s A c o s B = c o s ( A + B ) +

Problem 1:
Using the identity 2cosAcosB=cos(A+B)+cos(A-B), show analytically that if the amplitude-modulated signal f(t)=(1+mcosmt)cosct passes through a unity-gain bandpass filter whose phase plot is as shown in figure, then the output is g(t)=[1+mcos(m(t-g))]cosc(t-p)
Problem 1 : Using the identity 2 c o s A c o s B

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