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oswaldo669

  • 3 years ago

For what value of k does the system below not have a unique solution? -1x + 7y +2z=6 2x + 1y +kz = -11 3x - 6y - 2z =-25

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  1. abtrehearn
    • 3 years ago
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    Set tee determinant of the coefficient matrix equal to zero, and wlove the resulting equation for k.

  2. alice_smith
    • 3 years ago
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    do the one and the {and u find ur answer

  3. abtrehearn
    • 3 years ago
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    -27 + 30 + 15k = 0 k = -1/5

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