Try to integrate in polar coordiantes.
I have been going though a Q and have no idea how to even start it:
Suppose that have the joint distribution:
Now my initial thoughts are that the bounded unit cirrcle region gives the limits of integration such that:
, in our case A is bound by the unit circle, giving:
does this look like the right method to employ? I am not convinced..... the answer in the text book (no method though) ... can anyone offer any guidance on this one??
Many thanks for reading!