CALCULUS 2 Name: _____________________________ WORKSHEET 13.1 1. Plot the following: 7 A. 6, 6 3 B. 3, 4 C. 8, 5 D. 6, 3 11 E. 5, 6 2 F. 4, 3 Find the rectangular coordinates for each of the following polar coordinates: 5 2. 4, 6 2 3. 8, 3 Given the rectangular coordinates below, find the polar coordinates satisfying the conditions given: 4. 3,3 ; r 0 and 0 2 5. 5,5 3 ; r 0 and 6. 4 3 ,4 ; r 0 and 0 2 Change the following polar equations to rectangular equations: 7. r 8 8. r cos 6 9. r 5 csc 10. r 7 sin Change the following rectangular equations to polar equations: 11. x 2 y 2 81 12. y 5 13. y 2 10 x 14. 3xy 7 CALCULUS 2 Name: _____________________________ WORKSHEET 13.2-1 Convert to rectangular coordinates: Convert to polar coordinates: 5 1. 4, 3 2. 4,4 ; r 0 and 0 2 Change the following polar equations to rectangular equations: 3. r 3sec 4. r 5 cos Change the following rectangular equations to polar equations: 5. x 2 y 2 10 6. 2x y 2 0 Identify the polar graph (circle with center at pole, circle with center on x-axis, circle with center on y-axis, line through pole, spiral out, spiral in): 7. r 4 cos 9. 4 11. r 4 sin 8. r 4 10. r 4 12. r 4 Graph: 5 6 13. r 6 14. 15. r 6 cos 16. r 4 sin 17. r 3 2 18. r 5 CALCULUS 2 Name: _____________________________ WORKSHEET 13.2-2 Graph: 1. r 3 3 cos 2. r 4 4 sin 3. r 4 6 cos 4. r 7 2 sin 5. r 5 3 cos 6. r 3 4 sin CALCULUS 2 Name: _____________________________ WORKSHEET 13.2-3 Identify the polar graph (circle, spiral, cardioid, limacon, rose): If a circle, name the center (in polar coordinates) and the radius. If a limacon, name the type. If a rose, state the number of petals. 1. r 4 cos 2. r 5 2 sin 3. r 7 sin 10 4. r 6 5. r 4 7 sin 6. r 4 7. r 2 sin 8. r 6 6 cos 9. r 8 cos 5 10. r 8 11. r 8 6 cos Graph: 12. r 6 sin 2 13. r 7 cos 3 14. r 8 cos 2 15. r 8 sin 16. r 9 cos12 17. r 10 sin 4 CALCULUS 2 Name: _____________________________ WORKSHEET 13.3-1 Find the area enclosed by: 1. r 8 sin 2. r 5 5 cos 3. r 6 sin 4 4. r 8 cos 3 5. r 5 4 cos 6. r 3 6 sin 7. the inner loop of r 3 6 sin 8. between the inner and outer loops of r 3 6 sin CALCULUS 2 Name: _____________________________ WORKSHEET 13.3-2 1. Find the area outside of r 6 sin and inside of r 6 cos in the first quadrant 2. Find the area outside of r 2 2 cos and inside of r 4 3. Find the area outside of r 6 and inside of r 3 6 cos CALCULUS 2 Name: _____________________________ WORKSHEET 13.4-1 Obtain the rectangular equation by eliminating the parameter. Sketch a graph using either the parametric equations or the rectangular equation. 1. x 1 t , y 1 t 2. x 2t 5 , y 4t 7 3. x 3 3t , y 2 t 4. x t , y t 5. x t , y t 6. x 4 t , y t 7. x 3t , y 9t 2 8. x t 2 , y 4 t 2 use 0 t 2 9. x 4 cos , y 2 sin 10. x 2 sin , y 3 cos 11. x 9 sin 2 , y 9 cos 2 12. x sec 2 1 , y tan CALCULUS 2 Name: _____________________________ WORKSHEET 13.4-2 Find dy/dx in terms of the parameter. Then, find the slope and the equation of the tangent line at the given parameter. 1 2 1. x t 2 t , y t 2 t , t 1 2. x 3t , y 8t 3 , t 3. x t 1 , y 3t , t 3 4. x 1 5. x 2e t , y e t , t 0 3 6. x t ln t , y ln t , t e 7. x 4 sin , y 2 cos , 4 1 , y 2 ln t , t 1 t 8. x 2 sin 2 , y 2 cos 2 , t 3 8 CALCULUS 2 Name: _____________________________ CHAPTER 13 PRACTICE TEST Convert to rectangular coordinates: Convert to polar coordinates: 5 1. 5, 6 2. 6, 6 3 ; r 0 and 0 2 Change to a rectangular equation: Change to a polar equation: 3. r 3 cos 4. x y 2 x Match the equation to the type of polar graph. 5. r 6 5 cos A. line I. dimpled limacon 6. r 2 sin B. circle with center at pole J. limacon with inner loop 7. r 4 C. circle with center on x-axis K. rose with 2 petals 8. r 6 cos 4 D. circle with center on y-axis L. rose with 3 petals 9. r 8 cos E. spiral out M. rose with 4 petals 10. r 6 2 sin F. spiral in N. rose with 5 petals 11. r 8 sin 3 G. cardioid O. rose with 6 petals 12. r 5 5 cos H. convex limacon P. rose with 8 petals Graph: 13. r 8 cos 14. r 5 5 sin 15. r 6 3 cos 16. r 5 sin 2 Find the area: 17. enclosed by r 6 sin 18. enclosed by r 6 cos 3 19. enclosed by the inner loop of r 2 4 cos 20. outside of r 5 and inside of r 5 4 sin Obtain the rectangular equation by eliminating the parameter. 21. x 3t 7 , y 6t 4 22. x 3 cos , y 3 sin 2 Find dy/dx in terms of the parameter. Then, find the slope and the equation of the tangent line at the given parameter. 1 23. x 3t 2 2t , y 2t 3 1 , t 1 24. x 5 2 ln t , y 2 , t 1 t