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An elementary proof of Laplace’s formula on determinants. (English)
Int. J. Math. Educ. Sci. Technol. 43, No. 3, 418-420 (2012).
Summary: A well known result due to Laplace states the equivalence between two different ways of defining the determinant of a square matrix. We give here a short proof of this result, in a form that can be presented, in our opinion, at any level of undergraduate studies.
Classification: H65
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