Section 12.6

# Section 12.6 - The helicoid (or spiral ramp) with vector...

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12/9/08 7:48 PM Section 12.6 Page 1 of 2 http://www.webassign.net/v4cgiblmickle@ncsu/student.pl?l=20081210004825blmickle@ncsu15278239 Section 12.6 (Homework) MICKLES BRANDON L MA 242, section 008, Fall 2008 Instructor: April Alston Web Assign Current Score: 13 out of 13 Due: Friday, November 21, 2008 10:04 PM EST Description Surface Areas The due date for this assignment is past. Your work can be viewed below, but no changes can be made. 1. [SCalcCC2 12.6.02.] 3/3 points Find the area of the surface. The part of the plane 2 x + 5 y + z = 10 that lies inside the cylinder x 2 + y 2 = 9 155 155 2. [SCalcCC2 12.6.08.] 3/3 points Find the area of the surface.

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Unformatted text preview: The helicoid (or spiral ramp) with vector equation r ( u , v ) = u cos( v ) i + u sin( v ) j + v k , 0 u 1, 0 v 3.6058 3.61 3. [SCalcCC2 12.6.12.] 3/3 points Find the area of the surface. The surface z = (2/3)( x 3/2 + y 3/2 ), 0 x 1, 0 y 1 1.41 1.41 12/9/08 7:48 PM Section 12.6 Page 2 of 2 http://www.webassign.net/v4cgiblmickle@ncsu/student.pl?l=20081210004825blmickle@ncsu15278239 4. [SCalcCC2 12.6.22.] 4/4 points The figure shows the surface created when the cylinder y 2 + z 2 = 1 intersects the cylinder x 2 + z 2 = 1. Find the area of this surface. 16 16...
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## Section 12.6 - The helicoid (or spiral ramp) with vector...

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