Salut , ma puteti ajuta la urmatoarea problema ?
1) Se considera matricea A(m) = [tex]\left[\begin{array}{ccc}m&1&1\\1&m&1\\1&1&m\end{array}\right][/tex] , unde m este numar real.
c ) rezolvati ecuatia matriceala : A(-2) · X = [tex]\left[\begin{array}{ccc}1\\1\\-2\end{array}\right][/tex] , cu necunoscuta X = [tex]\left[\begin{array}{ccc}x\\y\\z\end{array}\right][/tex] ∈ M₃,₁ (R) .
