Mathematics, 25.07.2019 23:50 keelyrosewillia
Evaluate the determinant ( will pick brainiest) ![\left[\begin{array}{ccc}x& 1& -1\\x^2& x& x\\0& x& 1\end{array}\right]](/tex.php?f= \left[\begin{array}{ccc}x& 1& -1\\x^2& x& x\\0& x& 1\end{array}\right] )
plz you
Answers: 1
![\bf \begin{bmatrix} &1&-1\\&x&x\\0&& \end{bmatrix}\implies +(0) \begin{bmatrix} 1&-1\\x&x \end{bmatrix}\implies 0\\\\ -------------------------------\\\\ \begin{bmatrix} x&&-1\\x^2&&x\\&x& \end{bmatrix}\implies -(x) \begin{bmatrix} x&-1\\x^2&x \end{bmatrix}\implies -(x)[x^2~-~(-x^2)] \\\\\\ -(x)[x^2+x^2]\implies -(x)[2x^2]\implies -2x^3\\\\ -------------------------------](/tpl/images/0132/9051/39787.png)
![\bf \begin{bmatrix} x&1&\\x^2&x&\\&&1 \end{bmatrix}\implies +(1) \begin{bmatrix} x&1\\x^2&x \end{bmatrix}\implies +(1)[x^2~~-~~(x^2)] \\\\\\ +(1)[0]\implies 0\\\\ -------------------------------\\\\ \textit{and now we add all the minors} \\\\\\ 0-2x^3+0\implies -2x^3](/tpl/images/0132/9051/f90d6.png)
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Evaluate the determinant ( will pick brainiest) [tex] \left[\begin{array}{ccc}x& 1& -1\\x^2...
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