Question

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

Solution

Correct option is

   

       

   

SIMILAR QUESTIONS

Q1

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

Q2
Q3

The set of equations  

        ;  

        ;  

        

.

Q5
Q6

 

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

         

Q8
Q9

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

Q10

Let A be an orthogonal non-singular matrix of order n, then  is equal to :