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vfiekz [6]
3 years ago
6

Find the determinant of A.A.29B.2C.-2D.13​

Mathematics
1 answer:
strojnjashka [21]3 years ago
7 0

Answer:

Step-by-step explanation:

The determinant of a matrix is a special number that can be calculated from a square matrix.

...

To work out the determinant of a 3×3 matrix:

Multiply a by the determinant of the 2×2 matrix that is not in a's row or column.

Likewise for b, and for c.

Sum them up, but remember the minus in front of the b.

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