$\definecolor{red}{RGB}{255,0,0}$$\definecolor{black}{RGB}{0,0,0}$
  1. D
  2. D
  4. D
    • D  =   a·(e·i-f·h)-b·(d·i-f·g)+c·(d·h-e·g)
  1. a
  2. a
  4. a
  1. b
  2. b
  4. b
  1. c
  2. c
  4. c
  1. d
  2. d
  4. d
  1. e
  2. e
  4. e
  1. f
  2. f
  4. f
  1. g
  2. g
  4. g
  1. h
  2. h
  4. h
  1. i
  2. i
  4. i
: Determinant of a dimension 3 matrix

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