A satellite signal receiving dish is formed by revolving the parabola given by x = 20y about
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A satellite signal receiving dish is formed by revolving the parabola given by x² = 20y about the y-axis. The radius of the dish is r feet. Verify that the surface area of the dish is given by
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2[:/1+() X X 10 2 dx 7[100 + r²)³/² - 1000]. 15
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