Seja \( M \, = \, \begin {pmatrix} 1 \,\, 2 \,\, -1 \\ 3 \,\,\,\, 0 \,\,\,\, 4 \\ 2 \,\,\,\, 1 \,\,\,\, x \end {pmatrix}. \)
Sabendo que det(M) = 0, o valor de x é:
Seja \( M \, = \, \begin {pmatrix} 1 \,\, 2 \,\, -1 \\ 3 \,\,\,\, 0 \,\,\,\, 4 \\ 2 \,\,\,\, 1 \,\,\,\, x \end {pmatrix}. \)
Sabendo que det(M) = 0, o valor de x é:
