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Volume: The Disk Method

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Presentation on theme: "Volume: The Disk Method"— Presentation transcript:

1 Volume: The Disk Method
Section 7.2 Volume: The Disk Method

2 Examples (from mathdemos.org)

3 Examples (from mathdemos.org)

4 Examples (from mathdemos.org)

5 Examples (from mathdemos.org)

6 Examples (from mathdemos.org)

7 Formulas: Disk Method (about x axis)
Note: Function must be of the form: y = _____ and a and b are in terms of x values

8 Formulas: Disk Method (about y axis)
Note: Function must be of the form: x = _____ and c and d are in terms of y values

9 Formulas: Washer Method (about x axis)
Note: Function must be of the form: y = _____ and a and b are in terms of x values

10 Formulas: Washer Method (about y axis)
Note: Function must be of the form: x = _____ and c and d are in terms of y values

11 Washer Method Revolving about a Line
R(x) = Line - Farthest Graph r(x) = Line - Nearest Graph

12 1. Set up and evaluate the integral that gives the volume of the solid formed by revolving the region about the x-axis (similar to p.465 #1-5)

13 2. Set up and evaluate the integral that gives the volume of the solid formed by revolving the region about the x-axis (similar to p.465 #1-5)

14 3. Set up and evaluate the integral that gives the volume of the solid formed by revolving the region about the y-axis (similar to p.465 #7-9)

15 4. Set up and evaluate the integral that gives the volume of the solid formed by revolving the region about the y-axis (similar to p.465 #7-9)

16 the x-axis the y-axis the line x = 8 the line x = 10
5. Find the volumes of the solids generated by revolving the regions bounded by the graphs of the equations about the given lines (similar to p.465 #11-13) the x-axis the y-axis the line x = 8 the line x = 10

17 6. Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the line y = 6 (similar to p.465 #15-17)

18 7. Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the line x = 5 (similar to p.465 #19-21)

19 8. Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the x-axis (similar to p.465 #23-29)

20 9. Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the x-axis (similar to p.465 #33-35)


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