Question

Știe cineva subpunctul c, va rog am nevoie urgent?​

Answer 1

Răspuns:

Explicație pas cu pas:

$A(3)=\left[\begin{array}{ccc}1&3&6\\0&1&6\\0&0&1\end{array}\right]$

$A(5)=\left[\begin{array}{ccc}1&5&20\\0&1&10\\0&0&1\end{array}\right]$

$X=\left[\begin{array}{ccc}a&b&c\\d&e&f\\g&h&i\end{array}\right]$

$A(3)*X=\left[\begin{array}{ccc}a+3d+6g&b+3e+6h&c+3f+6i\\d+6g&e+6h&f+6i\\g&h&i\end{array}\right]$

A(3)*X=A(5) => g=0 h=0 i=1

Iar de aici doar înlocuiești :)