anonymous
  • anonymous
Find the inverse for the matrix, if it exists. |1 1 1| |2 1 1| |2 2 3|
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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amistre64
  • amistre64
put it against the identity matrix and try to convert it into the identity matrix.....
amistre64
  • amistre64
[1 1 1 | 1 0 0] [2 1 1 | 0 1 0] [2 2 3 | 0 0 1]
amistre64
  • amistre64
the rest of it looks like a mystery lol

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anonymous
  • anonymous
for real ? OMG it's my midterm :(
amistre64
  • amistre64
give me a minute to review this ;)
amistre64
  • amistre64
[1 1 1 ] [a b c] [1 0 0] [2 1 1 ] * [d e f] = [ 0 1 0] if anything else [2 2 3 ] [g h i] [0 0 1]
amistre64
  • amistre64
let me try this;: [1 0 0] [2 -1 -1] let me try that as the inverse... [-2 0 1]
amistre64
  • amistre64
......not quite seeing it here..
amistre64
  • amistre64
the matrix inverter says its: [-1 1 0] [4 -1-1] [-2 0 1]
amistre64
  • amistre64
http://www.math.ubc.ca/~israel/applet/mcalc/matcalc.html

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