If AX = B, where A = -1 & 2 2 & -1 , B = 1 1 then X = - Vidyadip

MCQ

If $AX = B$, where $A = \begin{bmatrix} -1 & 2 \\ 2 & -1\end{bmatrix} , B =\begin{bmatrix} 1 \\ 1\end{bmatrix} $ then $X =$

A
$ \begin{bmatrix} \frac{3}{5} \\ \frac{3}{7}\end{bmatrix}$
B
$ \begin{bmatrix} \frac{7}{3} \\ \frac{5}{3}\end{bmatrix} $
✓
$ \begin{bmatrix} 1 \\ 1\end{bmatrix} $
D
$ \begin{bmatrix} 1 \\ 2\end{bmatrix} $

✓

Answer

Correct option: C.

$ \begin{bmatrix} 1 \\ 1\end{bmatrix} $

(c) $ \begin{bmatrix} 1 \\ 1\end{bmatrix} $

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