# Mathematics 2C

**6. session**
Monday 10. March 2008

Auditorium M1.80

### Program

- 13:00-14:20
- Lecture on section 1.7 in Lay, Linear Independence.
- 14:20-14:45
- Introduction to the exercises.
- 14:45-16:30
- Exercises in groups.

### Exercises

- Lay section 1.5 page 71
- Exercise no. 1, 3, 5, 7, 15, 25
- In exercise 5 and 7: Write also the solution set as a
span of vectors.

Extra exercise: Recall that the vectors **i**, **j** and **k**
in 3D-space are defined by
**i** = (1,0,0), **j** = (0,1,0) and **k** = (0,0,1).

Give a geometric description of the following subsets of 3D-space:
Span{**i**}, Span{**j**}, Span{**k**},

Span{**i**, **j**}, Span{**i**, **k**},
Span{**j**, **k**},

Span{**i**, **j**, **k**}.

### Remark

On the Mathematics 2C homepage you can
find a description of the exam in June 2008.

Latest update 10. March 2008 by Iver Ottosen