Let d be the region in the first quadrant that is above y = x/4, below y = 4x and between the curves defined by xy = 4 and xy = 16. (a) sketch the region. (b) evaluate s d x 2 y 2 + x 2y 2 da. (hint: try u = xy and v = y/x.) (c) why was the hint a reasonable guess for change of coordinates?

Bis your answer rot d

Look, when you want to do something like put it like x^2. x2 could mean x² or x₂. so to clear confusion, know the notation. to find the product multiply the x's and you get -8x and the y's and you get 6y. since it's all being multiplied it is just -8x6y, or answer a. although the better answer is -48xy(combining -8 and 6) because you should multiply constants whenever you can.