2 01/21 F

1. 1st Ed: p53, q32, 2nd Ed: p64, q32. Draw the curve neatly.
2. 1st Ed: p54, q47, 2nd Ed: p65, q47. (30 points)
3. 1st Ed: p78, q46, 2nd Ed: p91, q46. $r=\sqrt{x^2+y^2+z^2}$
4. 1st Ed: p78, q54, 2nd Ed: p92, q54. You may want to refresh your memory on total derivatives.