This preview shows pages 1–2. Sign up to view the full content.
This preview has intentionally blurred sections. Sign up to view the full version.View Full Document
Unformatted text preview: MATH 133 Written Assignment 1 Due in LECTURE, 16 February 2009 Instructions: Show all work and justify answers (even where not explicitly requested). Marks may be deducted for lack of neatness (print if necessary). The assignment mark may be based on a randomly selected problem or problems instead of the whole assignment. There- fore be sure to solve each problem. In BLOCK CAPITALS, Print MATH 133, your INSTRUCTORS LAST NAME, your LAST NAME, first name, and your ID num- ber, in the top right corner of the first page or cover. All of your pages should be stapled together. Marked papers will be handed back in that instructors section. The instructors will not be responsible for lost or misplaced assignments which are not received in the lecture on the due date and as instructed above. 1. (15 points) Given the following system in the three variables x 1 ,x 2 ,x 3 : 3 x 2 + 3 x 3 =- 9- 2 x 1 + x 2 + 9 x 3 =- 17 x 1 + 4 x 2 =- 5 2 x 1 + 5 x 2- 3 x 3 =- 1 (a) Letting X = [ x 1 ,x...
View Full Document