Respuesta:
n ≠ 3 e n ≠ 4
Explicación paso a paso:
[tex]D=\left|\begin{array}{ccc}n&-6\\2&n-7\end{array}\right|\\\\D\neq0\\\\\left|\begin{array}{ccc}n&-6\\2&n-7\end{array}\right|\neq0\\\\n^2-7n+12\neq0\\\\\Delta=(-7)^2-4.1.12\\\\\Delta=49-49\\\\\Delta=1\\\\n\neq\frac{7\pm\sqrt{1} }{2} \\\\n\neq3~y ~n\neq4[/tex]
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Respuesta:
n ≠ 3 e n ≠ 4
Explicación paso a paso:
[tex]D=\left|\begin{array}{ccc}n&-6\\2&n-7\end{array}\right|\\\\D\neq0\\\\\left|\begin{array}{ccc}n&-6\\2&n-7\end{array}\right|\neq0\\\\n^2-7n+12\neq0\\\\\Delta=(-7)^2-4.1.12\\\\\Delta=49-49\\\\\Delta=1\\\\n\neq\frac{7\pm\sqrt{1} }{2} \\\\n\neq3~y ~n\neq4[/tex]