Question Practice

What is the cofactor of element a_{21} in matrix |A| = [[a, b, c], [d, e, f], [g, h, i]]?

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MCQ_SA

Single Answer MCQ

Q-00077769

(-1)^(2+1)M_{21}

M_{21}

d*i - f*g

(-1)^{1+2}(M_{12})

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