Find the exact arc length of the curve 2xy = y² + 4 over the interval 2 ≤ y ≤ 4. Find the area of the surface generated by revolving the curve x² - y² = 9 about the y-axis (-2 ≤ y ≤ 2).

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter11: Topics From Analytic Geometry
Section: Chapter Questions
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2. Find the exact arc length of the curve 2xy y2 + 4 over the interval
2 <y< 4. Find the area of the surface generated by revolving the
curve x2 - y2 = 9 about the y-axis (-2 < y < 2).
Transcribed Image Text:2. Find the exact arc length of the curve 2xy y2 + 4 over the interval 2 <y< 4. Find the area of the surface generated by revolving the curve x2 - y2 = 9 about the y-axis (-2 < y < 2).
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