These are both valid notations for the determinant of a matrix.

The determinant of a matrix can be found using the formula .

Simplify each term.

Multiply by .

Multiply by .

Subtract from .

Find the Determinant [[5,6],[1,9]]

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# Find the Determinant [[5,6],[1,9]]

These are both valid notations for the determinant of a matrix.

The determinant of a matrix can be found using the formula .

Simplify each term.

Multiply by .

Multiply by .

Subtract from .

Find the Determinant [[5,6],[1,9]]