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)

Calculus: Early Transcendentals
8th Edition
ISBN:9781285741550
Author:James Stewart
Publisher:James Stewart
Chapter1: Functions And Models
Section: Chapter Questions
Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...
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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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