MATH 254 HW 2 - exercises found in Lay 3 rd Edition, pp....

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MATH 254, F ALL 2009 H OMEWORK 2 D UE T HURSDAY , 9/17/09 This assignment is due at the beginning of class, Thursday, 9/17/09. You must bring a copy to class—it can be typed or neatly hand-written. If necessary, add illustrations by hand or with computer graphics. Late homework is not accepted. Read the directions carefully. For every question that asks you to “justify your answer,” a simple calculation or response without explanation is not sufficient. Make your arguments understandable and convincing. T EXTBOOK Q UESTIONS Section 1.7 in the text deals with span and linear independence. Please complete the following
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Unformatted text preview: exercises found in Lay 3 rd Edition, pp. 70-73. 1. Page 70, #2 2. Page 70, #4 3. Page 70, #10 4. Page 70, #12 5. Page 70, #18 6. Page 70, #20 7. Page 70, #22 all 8. Page 71, # 34 9. Page 71, #36 10. Page 71, #38 On page 70, there are 4 practice problems posed. The solutions are given on page 72. I strongly suggest you work through these and then consult the answers. These 4 questions draw attention to a few subtleties that exist when dealing with span and linear independence. You do not need to turn anything in for these, but I strongly recommend that you try them. O THER Q UESTIONS None....
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