Question: -4x a) Evaluate dydx. b) Given the polar rectangular region R = {(r,0)|1 r 4,0 0 2} i) Sketch the R region. ii) If

-4x a) Evaluate dydx. b) Given the polar rectangular region R = {(r,0)|1 r 4,0 0 2} i) Sketch the R region. ii) If the given function is f(x, y) = 3y, determine the ff f(x,y)dA.

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