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# Lesson 02 Appsof Integrals Mar19

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### Lesson 02 Appsof Integrals Mar19

1. 1. Revolve about the x­axis A(x) =  tan2(x) y = tan(x) y = 0  x =  4 0.674 units
2. 2. Find the volume of the solid generated by revolving about  the x­axis the region bounded by the line y = 2x + 4 and the  curve y = ex.
3. 3. 183.981
4. 4. The region bounded by the graph of y = x2 + 1 and the line  y = x + 1 generates various solids when rotated as follows: a) about the x ­ axis b) about the line y =  ­ 1
5. 5. a) about the x ­ axis 7 15
6. 6. b) about the line y =  ­ 1    4 5
7. 7. Exercise 8.2 Questions 11 ­ 19