If A= ( ll 1 & 2 3 & 4 ) and A(adj A)=k l, then the value of k is - Vidyadip

MCQ

If $A=\left(\begin{array}{ll}1 & 2 \\ 3 & 4\end{array}\right)$ and $A(\operatorname{adj} A)=k l$, then the value of $k$ is

A
2
✓
-2
C
10
D
-10

✓

Answer

Correct option: B.

-2

-2

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