| 132899 | A tilted cylinder has equation surface | Medium | Strang | |
| 132901 | (a) Check that the line … is tangent to the circle … | Medium | Strang | |
| 132902 | The slope of the normal line in Figure A is | Medium | Strang | |
| 132903 | Figure B proves the reflecting property of an ellipse | Medium | Strang | |
| 132905 | Compute the area of a square that just fits inside the ellipse… | Medium | Strang | |
| 132907 | What are … for the Earth's orbit around the sun | Medium | Strang | |
| 132908 | Find an equation for the hyperbola with (a) vertices …, foci … | Medium | Strang | |
| 132909 | Find the slope of … at | Medium | Strang | |
| 132911 | If a cannon was heard by Napoleon and one second later by… | Deep | Strang | |
| 132917 | Given any \_\_\_\_\_\_ points in the plane, a second-degree curve … goes… | Deep | Strang | |
| 132918 | (a) When the plane … meets the cone …, eliminate … by… | Deep | Strang | |
| 132919 | The roots of … also involve the special combination | Deep | Strang | |
| 105735 | The Ellipse · Try It 3 | Easy | OpenStax | |
| 105749 | The Ellipse · Exercise 10 | Easy | OpenStax | |
| 105751 | The Ellipse · Exercise 12 | Easy | OpenStax | |
| 105753 | The Ellipse · Exercise 14 | Medium | OpenStax | |
| 105775 | The Ellipse · Exercise 36 | Medium | OpenStax | |
| 105777 | The Ellipse · Exercise 38 | Medium | OpenStax | |
| 105793 | The Ellipse · Exercise 54 | Medium | OpenStax | |
| 105802 | The Ellipse · Exercise 68 | Deep | OpenStax | |
| 105808 | The Ellipse · Exercise 74 | Medium | OpenStax | |
| 105820 | The Hyperbola · Try It 2 | Easy | OpenStax | |
| 105833 | The Hyperbola · Exercise 11 | Medium | OpenStax | |
| 105835 | The Hyperbola · Exercise 13 | Medium | OpenStax | |
| 105871 | The Hyperbola · Exercise 49 | Medium | OpenStax | |
| 105888 | The Hyperbola · Exercise 71 | Medium | OpenStax | |
| 105903 | The Parabola · Try It 3 | Easy | OpenStax | |
| 105908 | The Parabola · Try It 6 | Easy | OpenStax | |
| 105911 | The Parabola · Exercise 7 | Easy | OpenStax | |
| 105913 | The Parabola · Exercise 9 | Easy | OpenStax | |
| 105915 | The Parabola · Exercise 11 | Medium | OpenStax | |
| 105953 | The Parabola · Exercise 49 | Medium | OpenStax | |
| 105955 | The Parabola · Exercise 51 | Medium | OpenStax | |
| 105960 | The Parabola · Exercise 61 | Deep | OpenStax | |
| 105962 | The Parabola · Exercise 63 | Deep | OpenStax | |
| 105964 | The Parabola · Exercise 65 | Medium | OpenStax | |
| 105966 | The Parabola · Exercise 67 | Medium | OpenStax | |
| 105968 | The Parabola · Exercise 69 | Medium | OpenStax | |
| 105970 | The Parabola · Exercise 71 | Medium | OpenStax | |
| 105972 | The Parabola · Exercise 73 | Medium | OpenStax | |
| 105982 | Rotation of Axes · Try It 1 | Easy | OpenStax | |
| 105988 | Rotation of Axes · Try It 3 | Easy | OpenStax | |
| 105989 | Rotation of Axes · Exercise 6 | Easy | OpenStax | |
| 105991 | Rotation of Axes · Exercise 8 | Easy | OpenStax | |
| 105995 | Rotation of Axes · Exercise 12 | Medium | OpenStax | |
| 105997 | Rotation of Axes · Exercise 14 | Medium | OpenStax | |
| 105999 | Rotation of Axes · Exercise 16 | Medium | OpenStax | |
| 106001 | Rotation of Axes · Exercise 18 | Medium | OpenStax | |
| 106003 | Rotation of Axes · Exercise 20 | Medium | OpenStax | |
| 106005 | Rotation of Axes · Exercise 22 | Medium | OpenStax | |