TheoremBase

The Determinant is Multiplicative

Statement

Let nn be a natural number, let [n][n] be the initial segment determined by nn, and let AA and BB be real n×nn\times n matrices. Let ABAB be the matrix product, and let determinants be read as in Row Properties of the Determinant.

Then

det⁡(AB)=det⁡A det⁡B.\det(AB)=\det A\ \det B.

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