Day 58 in MAT229

Last time: Planes

Next time: No next time!;)

For your final:

Announcements:
- There will be two review sessions:
  - Tuesday, 12/16, 1:00-3:00 pm
  - Thursday, 12/18, 7:00-9:00 pm
- A problem or two from 13.4/13.5 will appear on the final, from the following list:
  - pp. 692: #36, 38, 53, 65
  - pp. 699: #4, 14, 25, 33
- The final will be about 30% new stuff, 70% old. You'll be allowed to skip one or two of the "old stuff" problems. Best way to study: review your tests (be able to do every problem). If you can do that, you should be in good shape. I'll be asking similar problems.
Vector Geometry
- Something interesting:
  
  ${\left(\underline{\bf{u}}\cdot\hat{\bf{e}}_v\right)^2+\left(||\underline{\bf{u}}\times\hat{\bf{e}}_v||\right)^2=||\underline{\bf{u}}||^2}$
  Draw a picture, and you'll see how these are connected in that Pathagorean way....

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