Sketch the circle with equation x2 + y2 = 9. a Explain why the upper half of the circle

Chapter 19, Problem 8

(choose chapter or problem)

Sketch the circle with equation x2 + y2 = 9. a Explain why the upper half of the circle has equation y = p 9 x2. b Hence, determine Z 3 0 p9 x2 dx without actually integrating the function. c Check your answer using technology

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