Let A = [] be a square matrix of order 3×3 and |A|= -7. Find the value of
a11 A21 + a12A22 + a13 23
where is the cofactor of element ?
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Answer:
find the matrix of cofactor of the matrix[2/3,-1/4]
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find the matrix of cofactor of the matrix[2/3,-1/4]
find the matrix of cofactor of the matrix[2/3,-1/4]
Answered by
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Answer:
a11A21+a12A22+a13A23=0
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