Question

In: Statistics and Probability

Let Zt = U sin(2*pi*t) + V cos(2*pi*t), where U and V are independent random variables,...

Let Zt = U sin(2*pi*t) + V cos(2*pi*t), where U and V are independent random variables, each with
mean 0 and variance 1.
(a) Is Zt strictly stationary?
(b) Is Zt weakly stationary?

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