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det(
1
3
5
9
1
3
1
7
4
3
9
7
5
2
0
9
)
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Solution
−376
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Solution steps
Solve by:
One step at a time
det(
1
3
5
9
1
3
1
7
4
3
9
7
5
2
0
9
)
Reduce to an upper triangualar form
=−det(
1
3
5
9
0
−9
−11
−29
0
0
−4
−2
0
0
0
949
)
Calculate the determinant of the triangular matrix