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

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Find the inverse matrix!
Numbers in the forms 1/2 or 0.5 are accepted:

A: