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Review the following: Trigonometric product identities: sina + sin = 2 sin + cosa-B a - sina - sin = 2 cos+sin - B

Review the following: Trigonometric product identities: sina + sin = 2 sin + cosa-B a - sina - sin = 2 cos+sin - B cosa + cos = 2 cos- cosa + Bo cos 2 cos-cos=-2 sin+sin- Fourier series Fourier transform - - 2 Questions: 1- Define what is meant by the modulation index in amplitude modulation. (10 points) 2- True or false: We can have only one frequency component in the modulating signal. (5 points)

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