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How does the determinant of a product relate to those of its factors?

  • A.it is the larger of the two determinants
  • B.it bears no fixed relation to them
  • C.it is the product of the two determinants
  • D.it is the sum of the two determinants

Answer: C

The multiplicative property holds for square matrices of the same order and is one of the most useful facts about determinants. It immediately shows that a product is singular if either factor is, and it gives the determinant of an inverse as the reciprocal.

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