anonymous
  • anonymous
find the value of 5 1 4 2
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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FireKat97
  • FireKat97
are you meant to find the determinant of the matrix 5 1 4 2 ???
anonymous
  • anonymous
yes
FireKat97
  • FireKat97
okay so to find the determinant of a 2 x 2 matrix, you do... |dw:1443686132265:dw| (1) - (2) where (1) is the product of 5 and 2 and (2) is the product of 1 and 4

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FireKat97
  • FireKat97
so try solving that and tell me what you get
anonymous
  • anonymous
i got 38
anonymous
  • anonymous
@FireKat97
FireKat97
  • FireKat97
Not quite, so (1) = product of 5 and 2, so (1) = 5 x 2 = ? (2) = product of 1 and 4, so (2) = 1 x 4 = ? and determinant = (1) - (2) so determinant = (5 x 2) - (1 x 4) = ?? so now try again
anonymous
  • anonymous
6
FireKat97
  • FireKat97
Yup! Thats correct :)
anonymous
  • anonymous
thats the value?
FireKat97
  • FireKat97
yup thats the determinant..
FireKat97
  • FireKat97
wait, the question was asking for the determinant right?

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