A question in random variables and random processes

Shloa4

attached in a file.
I will be grateful for some help here.
Thanks

mathman

The phase is the random variable of interest. X and Y are functions of the phase.
The basic idea is that if A is a random variable and f a function of A, then
E(f(A))=∫f(a)dF(a), where F(a) = P(A≤a), the distribution function for A.

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mathman Recognitions: Science Advisor	The phase is the random variable of interest. X and Y are functions of the phase. The basic idea is that if A is a random variable and f a function of A, then E(f(A))=∫f(a)dF(a), where F(a) = P(A≤a), the distribution function for A.