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OpenStudy (anonymous):
Calculate the second term in the cofactor expansion along the third row for the matrix [[-3,-2,2,1],[-3,4,-1,2],[4,-3,2,-1],[-2,-3,2,1]]
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OpenStudy (anonymous):
Linear algebra was my worst math, but I think I remember how to do these. Check the attached image, do you understand how those determinants are equal?
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