Practice Test 3d

Practice Test 3d - Name 18 April 2007 Teaching Assistant...

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

Name 18 April 2007 Teaching Assistant Hour Test 3 Math 1502D Andrew Instructions: 1. Closed book. 2. Show your work and explain your answers and reasoning. 3. Calculators may be used, but pay particular attention to instruction 2. To receive credit, you must show your work. Unexplained answers, and answers not supported by the work you show, will not receive credit. 4. Express your answers in simplified form. 1. (25) a. Find a basis for the image of the matrix - = 7 6 2 2 1 3 7 4 1 2 2 3 2 1 1 A b. What is the dimension of the kernel of A ? Why? 2. (25) a. Find the QR factorization of the matrix - - - - = 5 2 3 2 3 2 5 2 A . b. Use the QR factorization from part a to find the least squares solution of - = 0 9 5 2 x A .

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

View Full Document
Name Page 2 of 3 Hour Test 3 Teaching Assistant 18 April 2007 3. (25) In this question we revisit an old problem: finding the distance between two
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

Page1 / 3

Practice Test 3d - Name 18 April 2007 Teaching Assistant...

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

View Full Document
Ask a homework question - tutors are online