Asked by lesgo
If a 4×4 matrix A with rows v1, v2, v3, and v4 has determinant detA=7,
row 1 [ v1]
row 2 [ 4v2 + 9v4 ]
row 3 [ v3 ]
row 4 [3v2 + 2v4 ]
what is the det of this matrix?
row 1 [ v1]
row 2 [ 4v2 + 9v4 ]
row 3 [ v3 ]
row 4 [3v2 + 2v4 ]
what is the det of this matrix?
Answers
Answered by
oobleck
as you said, it is 7.
Not sure how your determinant looks. Each row needs four elements ...
Expand by minors to evaluate it.
Not sure how your determinant looks. Each row needs four elements ...
Expand by minors to evaluate it.
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