Question

Let p be a non-singular matrix  (O denotes the null matrix), then p–1 is ;

Solution

Correct option is

pn

   

Pre-multiplying both side by p–1, we get :  

        

  

  

SIMILAR QUESTIONS

Q1

             

and I is a unit matrix.

Q2

If a, b, c are in A.P. and  then f’(x) is :

Q3
Q4

The set of equations  

        ;  

        ;  

        

.

Q6
Q7

 

If xyz are integers in AP, lying between 1 and 9, and x51, y41 and z31 are three-digit numbers then the value of

         

Q9
Q10

If D = diagonal [d1d2d3, … dn] where  thenD–1 is equal to: