MAT22A-Waldron-Fall-2010.awlee.ReadingHomework2

MAT22A-Waldron-Fall-2010.awlee.ReadingHomework2 - which...

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Alexander Lee MAT22A-Waldron-Fall-2010 WeBWorK ReadingHomework2 is due : 09/29/2010 at 03:00pm PDT. Visit http://www.math.ucdavis.edu/ wally/teaching/22A/22A.html for the syllabus, grading policy and other information. The primary purpose of WeBWorK is to let you know that you are getting the correct answer or to alert you if you are making some kind of mistake. Usually you can attempt a problem as many times as you want before the due date. However, if you are having trouble figuring out your error, you should consult the book, or ask a fellow student, one of the TAs or your professor for help. Don’t spend a lot of time guessing – it’s not very efficient or effective. Give 4 or 5 significant digits for (floating point) numerical answers. For most problems when entering numerical answers, you can if you wish enter elementary expressions such as 2 3 instead of 8, sin ( 3 * pi / 2 ) instead of -1, e ( ln ( 2 )) instead of 2, ( 2 + tan ( 3 )) * ( 4 - sin ( 5 )) 6 - 7 / 8 instead of 27620.3413, etc. Here’s the list of the functions
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Unformatted text preview: which WeBWorK understands. You can use the Feedback button on each problem page to send e-mail to the professor. Consider the following augmented matrix: 4 6 22 24 32 12 8 18 30 28 14 10 26 16 20 Using the notation from the lecture notes, what are the values of the following entries? a 2 1 = a 3 2 = b 2 = a 1 3 = b 1 = Warning: The superscripts here (and in the lecture notes) are NOT exponents. Correct Answers: • 12 • 10 • 28 • 22 • 32 The system of equations 6 x-8 y + 4 z =-14-8 x-6 y + 10 z = 26 10 x + 9 y-8 z = 8 has the following augmented matrix: 6-8 4-14-8-6 10 26 10 9-8 8 The reduced row echelon form of this matrix is: 1 1 1 6 1 7 What is the solution to the original system of equations? x = y = z = Correct Answers: • 1 • 6 • 7 Generated by the WeBWorK system c ± WeBWorK Team, Department of Mathematics, University of Rochester 1...
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This note was uploaded on 09/28/2011 for the course MAT 22A taught by Professor Puckett during the Fall '10 term at UC Davis.

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