solutions_501_01 - goLu’flO-MQ MATH 323-501 QUIZ 1 Fall...

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Unformatted text preview: goLu’flO-MQ MATH 323-501, QUIZ 1. Fall 2010 NAME Show all steps for credit. Q1. (4 pts.) Find all solutions of the equations 1131 +$2+$3 =2 $1+2$2+2$3 =3 2551 +3172 '+ 3373 = 5. “1 z 1 2— mm; ( l ‘ 1 Z 1 3 g Veg-2E4 0 l ( «3—22. ( l l 2' wfi o k ‘ ‘ 0 (90 CD Q2. (4 pts.) Find the values of a and b for which the system <1 1 1 3) 1 2 2 5 <2 3 a is inconsistent 0?: A? ( t 1 3 R“: K'— f—j é ( 2.. I?) —u?, L e o (1—2. ( I l( ooa‘s (héogglr ‘ wt“; Ci =; N 5%? Q3. (2 pts) Is it true that AB=BA for ’ 1 2 2 2 A=(s4) B= (35) 14%: (‘Z‘>(22->—; % (L 3 L 1,19 ...
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