hw7 - x 1 + x 2-2x 3 = 4, 3x 1 + 5x 2-4x 3 = 16, 2x 1 + 3x...

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MATH 262 Homework 7 Feb 8, Fall 2009 Name: Section: NO CREDIT WILL BE GIVEN IF YOU EITHER SHOW YOUR ANSWERS TO OTHERS OR YOU COPY FROM OTHERS. THIS QUIZ SHOULD BE DONE BY YOURSELF. 1. (5 points) Determine all values of a and b for which the following system has (a) no solution, (b) infinitely many solutions, and (c) a unique solution.
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Unformatted text preview: x 1 + x 2-2x 3 = 4, 3x 1 + 5x 2-4x 3 = 16, 2x 1 + 3x 2-ax 3 = b. 2. (5 points) Consider A x = b where A = 1 5 3-2 11 2-2 6 , b = 2 2 . Find rank ( A ) ,rank ( A # ) , and determine the solution set....
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