Let R = {(x, y) ER214 < x? + y < 9}. By inverting to polar coordinates: %3D y? %3D Vx? - + y2 Select one: O None of these 3. 2n p² sin (0)d@dr. r sin(0)dedr. 3 2л cos() sin(0)d@dr. 3 2n sin (0)dodr.

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