Question: 3 3 3 Let C = 2 r1 4 l 2 3 Determine the matrix of oofactors of C. Determine the adjugate of C. Calculate

3 3 3 Let C = 2 r1 4 l 2 3 Determine the matrix of oofactors of C. Determine the adjugate of C. Calculate the determinant of (I by using EROs to reduce C to an upper triangular matrix. (Note: If you use oofactor expansion or any other method instead, you will earn zero marks on this part.) Use the information in parts a) through c) to determine C 1. (Note: You can always check your answer by using the superaugmented matrix method of nding the inverse, or by using the check for inverses that you were tested on in the midterm! Please do not include this check as part of your submission it will be ignored.)

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