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engineergirl14

  • 2 years ago

Can someone help me with a linear algebra question? Find eigenvalues and eigenvectors of the following matrix: A=[ -2 1; -4 -1] Thanks!

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  1. experimentX
    • 2 years ago
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    |dw:1352989319912:dw|

  2. engineergirl14
    • 2 years ago
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    I was able to get that far, this eigen equation has complex roots, right?

  3. experimentX
    • 2 years ago
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    yes

  4. engineergirl14
    • 2 years ago
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    Could you help me find the roots? I'm not sure how to do it without a calculator or wolfram.

  5. experimentX
    • 2 years ago
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    just plugin into Wolf

  6. experimentX
    • 2 years ago
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    http://www.wolframalpha.com/input/?i=x^2+%2B+3x+%2B+6+%3D+0

  7. experimentX
    • 2 years ago
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    use those two eigen values to find eigen vectors

  8. engineergirl14
    • 2 years ago
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    Thanks, I think I got it

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