Test3E_Fall06 - Test 3E Fall 06 You scored 50 out of 50...

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Test 3E Fall 06 You scored 50 out of 50 Question 1 Your answer is CORRECT. The matrics A, B and C are given by and D = AB - 2C . Give the value in the third row and second column of D . a ) b ) c ) d ) e ) f ) None of the above. Question 2 Your answer is CORRECT. Let Use interval notation to describe the set of values of a for which C is a nonsingular matrix. a ) ( - , -1 ) ( 2 , 2 ) ( 2 , ) b ) ( - , -3 ) ( -3 , 2 ) ( 2 , ) c ) ( - , -2 ) ( -2 , 2 ) ( 2 , ) d ) ( - , -2 ) ( -2 , 1 ) ( 1 , ) e ) ( - , -1 ) ( -1 , 2 ) ( 2 , ) f ) None of the above. Question 3 Your answer is CORRECT. The linear, homogeneous, constant coefficient equation of least order that has as a solution is a ) b ) c )
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