Final adjoint of matrix A= [ ll 2 & 3 1 & 4 ] - Vidyadip

MCQ

Final adjoint of matrix $A=\left[\begin{array}{ll}2 & 3 \\ 1 & 4\end{array}\right]$

✓
$\left[\begin{array}{cc}4 & -3 \\ -1 & 2\end{array}\right]$
B
$\left[\begin{array}{ll}-2 & -3 \\ -1 & -4\end{array}\right]$
C
$\left[\begin{array}{rr}-4 & 3 \\ 1 & -2\end{array}\right]$
D
$\left[\begin{array}{ll}4 & 1 \\ 3 & 2\end{array}\right]$

✓

Answer

Correct option: A.

$\left[\begin{array}{cc}4 & -3 \\ -1 & 2\end{array}\right]$

A

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