Choose the correct region of integration 10 (x² + y²) dy dx. Assume that in each figure, the horizontal axis is the x-axis and the vertical axis is the y-axis. O O 100-x² aluate 10 10 100-x f(r, 0) dr do = se symbolic notation and fractions where needed.) O (x² + y²) dy dx by changing to polar coordinates.

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