Question

$For A=\left[\begin{array}{ccc}p&q\\r&s\end{array}\right] ,Show that adj(adjA)=A .$

Answer 1

Dear Student:

adj(adjA)=A

 See the attachment.

Find  adj( A).

cofA represents co-factor of A

T represents transpose of co-factor A

Answer 2

Step-by-step explanation:

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