# Mathematics 1B

**16. session**
Tuesday 10. November 2009

Auditorium M1.80

### Program

- 09:00-10:20
- Lecture on E&P Section 11.4, Lines and Planes in Space, page 843-846.
- 10:20-10:45
- Introduction to the exercises.
- 10:45-12:30
- Exercises in groups.

### Exercises

- Section 11.1, page 823
- Problems no. 21, 38.
- Section 11.2, page 833
- Problems no. 3, 62.
- Find the perpendicular projection of the vector
**a** = (4, 4, -7) onto
the vector **b** = (2, -1, -2).
- Section 11.3, page 842
- Problems no. 2, 13, 14.

### Illustration

Vector equation of a line in 3D-space, by W. Fendt.

Latest update 9. November 2009 by Iver Ottosen