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The area of the ellipse in the figure is three times the area of the circle. What is the length of the major axis? X Need Help? 10(0,7) cox 0 -10 10 -10-(0,-7) (-a, 0) 80 20- Read It -20 20 (a,0)

The area of the ellipse in the figure is three times the area of the circle. What is the length of the major axis? X Need Help? 10(0,7) cox 0 -10 10 -10-(0,-7) (-a, 0) 80 20- Read It -20 20 (a,0)

Trigonometry (MindTap Course List)
Trigonometry (MindTap Course List)
10th Edition
ISBN:9781337278461
Author:Ron Larson
Publisher:Ron Larson
Chapter2: Analytic Trigonometry
Section2.3: Solving Trigonometric Equations
Problem 11ECP
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I need help with these two problems please help me

The area of the ellipse in the figure is three times the area of the circle. What is the length of the major axis? X Need Help? (-a, 0) Read It -10 20- 10- (0,7) -10-(0, -7) -20 10 (a,0)
Transcribed Image Text:The area of the ellipse in the figure is three times the area of the circle. What is the length of the major axis? X Need Help? (-a, 0) Read It -10 20- 10- (0,7) -10-(0, -7) -20 10 (a,0)
Find the surface area of the torus generated by revolving the circle given by r = 2a about the line r = 7b sec(0), where 0 < 2a < 7b. Need Help? Read It
Transcribed Image Text:Find the surface area of the torus generated by revolving the circle given by r = 2a about the line r = 7b sec(0), where 0 < 2a < 7b. Need Help? Read It
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