4. Let (X,Y) be distributed with joint pdf ·[1 + xy(x² − y²)] if |x| ≤ 1, [y] ≤ 1, f(x, y) = - £1¹+² 0 otherwise. a. Find the moment generating function of (X,Y).

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A: As per the guideline, 3 subparts can be answered. please repost the remaining subparts.

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