Fa06Ex2

Fa06Ex2 - EGN 3420 Fa 06 Exam 2 Name _ Note: No Calculators...

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Exam 2 Name _________________ Fa 06 Note: No Calculators allowed! Write your answers on the Answer Sheet only after you are sure of your answer. Any answer crossed out will be marked wrong. There may be more than one correct answer from the choices. Enter all the ones which you believe are correct. Each correct answer is worth 5 pts Each incorrect answer results in 2 pts deducted from your score Blank answers result in no credit added or subtracted. 1. The system of equations: 2 2 1 x y x y + = + = is a) consistent b) consistent with infinite solutions c) inconsistent d) has only a single solution 2. The system of equations 2 2 2 1 3 3 3 x y x y x y + = + = + = is a) consistent with infinite solutions b) consistent with one solution c) inconsistent 3. Given matrix 2 24 12 0.1 0 3 3 6 . 0 0 0.25 15 0 0 0 4 A - = Its determinant is equal to a) 1 b) 2 c) 3 d) 6 e) 5 4. Given matrices 4 1 3 4 1 3 2 0 2 and 4 0 4 4 1 0 12 3 0 A B = = a)
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Fa06Ex2 - EGN 3420 Fa 06 Exam 2 Name _ Note: No Calculators...

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