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5. (5 pts) Let x(t)=Acos(2fct)+Bsin(2fct) be a random process where A and B are statistically independent N(0,2) random variables. a. Find the mean and correlation

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5. (5 pts) Let x(t)=Acos(2fct)+Bsin(2fct) be a random process where A and B are statistically independent N(0,2) random variables. a. Find the mean and correlation functions, mx(t) and Rx(t1,t2). b. Is x(t) wide-sense stationary? State your reason briefly. c. Determine the first-order PDF of x(t)

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