Sp07_midterm1

Sp07_midterm1 - Name: Discussion Section - No: PID: Time:...

Info iconThis preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Name: PID: Discussion Section - No: Time: Midterm 1, Math 20F - Lecture B (Spring 2007) Duration: 50 minutes This is a closed-book exam. Calculators are not allowed. You can use one page of notes. To get full credit you should support your answers. There are four questions in this exam. All of the questions have two parts. 1. Consider the system of linear equations 2 x 1 + 4 x 2 - x 3 = 2 x 1 + 2 x 2 + hx 3 = b where h and b are scalars. a) (2.5 points) Explain why the system cannot have a unique solution. b) (2.5 points) For what values of h and b the system is inconsistent. # Score 1 2 3 4 Total
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
2. The solution set of the homogeneous system Ax = 0 where A is a 3 by 3 matrix (corre- sponding to a system of three equations in three unknowns) is given by span - 1 1 0 , - 1 0 1 . Let p = 2 3 - 1 be a particular solution satisfying Ax = b for some given vector b of size 3. a) (2 points)
Background image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

Page1 / 5

Sp07_midterm1 - Name: Discussion Section - No: PID: Time:...

This preview shows document pages 1 - 3. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online