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gjhfdfg

  • 3 years ago

Can someone tell me where I went wrong evaluating this matrice?

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  1. gjhfdfg
    • 3 years ago
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    Started out with this, |dw:1361293377316:dw|

  2. gjhfdfg
    • 3 years ago
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    I'm just gonna type what I did next,

  3. gjhfdfg
    • 3 years ago
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    3( 0 - 0) - (-3) (6-0) - (-3) (-15 - 0)

  4. gjhfdfg
    • 3 years ago
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    3(0) - (-3)(6) - (-3) (15) 0 - (-18) - (-3) (45)

  5. gjhfdfg
    • 3 years ago
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    I didnt solve it completely. I knew it wasnt going to come out right.

  6. nubeer
    • 3 years ago
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    hmm you trying to find determinant?

  7. nubeer
    • 3 years ago
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    |dw:1361293847269:dw|

  8. gjhfdfg
    • 3 years ago
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    Noo, I'm suppose to evaluate it

  9. nubeer
    • 3 years ago
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    well u did a sign mistkae i corrected it.

  10. gjhfdfg
    • 3 years ago
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    Alright, still doesnt change much

  11. nubeer
    • 3 years ago
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    0-3(5) +3 (5*-3) 0-15-45 i think should be soemthing like this

  12. phi
    • 3 years ago
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    the last 3 should be +

  13. gjhfdfg
    • 3 years ago
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    Ah, I was following a video tutorial on how to do these & the guy changed the last 2 signs. So I thought I had to do the same. So my answer is 30

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