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  • f A is an invertible matrix of order 2 and detA equal 4 then write the value of det A-1

If A is an invertible matrix of order 2 and det \left ( A \right )= 4, then write the value of det(A-1).

 

 

 

 
 
 
 
 

Answers (1)

\left | A^{-1} \right |= \frac{1}{\left | A \right |}   given : order = 2
                             det\left ( A \right )= 4= \left | A \right |
         = \frac{1}{4} 

Posted by

Ravindra Pindel

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