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douglas12

  • 2 years ago

Determine whether the matrix has an inverse. If an inverse exists, find it. -5 -18 2 7

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  1. Loser66
    • 2 years ago
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    yes

  2. jdoe0001
    • 2 years ago
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    so, what is it?

  3. jdoe0001
    • 2 years ago
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    hehe, don't leave us in suspense :P

  4. douglas12
    • 2 years ago
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    So how do you find the inverse of that matrix

  5. jdoe0001
    • 2 years ago
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    well, let's find the DETERMINANT first, can you find the determinant of that 2x2 matrix?

  6. Loser66
    • 2 years ago
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    read it,at the middle page http://www.mathsisfun.com/algebra/matrix-inverse.html

  7. Directrix
    • 2 years ago
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    @douglas12 If you are allowed to use technology in your work, check out the online matrix inverse calculator at http://www.bluebit.gr/matrix-calculator/

  8. Directrix
    • 2 years ago
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    @douglas12 Post what you get as the inverse.

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