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Consider the following amplitude modulated signal:
$$s\left ( t \right )=\cos\left ( 2000\:\pi t \right )+4\cos\left ( 2400\:\pi t \right )+ \cos\left ( 2800\:\pi t \right ).$$The ratio (accurate to three decimal places) of the power of the message signal to the power of the carrier signal is _________.
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Answer should be 0.25
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Yup..ans should be .25...it has to be challenged..
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CAN ANYONE PLEASE ANSWER HOW ANSWER IS BETWEEN .12-.13 BECOZ ANSWER SHOULD BE .25 AND THEY HAVE NOT ACCEPTED THE CHALLENGE ON THE ANSWER KEY THAT IS BEING DONE.
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