Question

 

          .

          

            

has a non-zero solution, then value of  

         

Solution

Correct option is

2

                                                           

[∵ system has non-zero solution also, D1 = D2 = D3 = 0. So, D must be equal to zero]   

                                                 

     

         

  

                                                               

    r

  

.

SIMILAR QUESTIONS

Q1
Q2

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

Q3

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

Q4

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

Q5

A’ is any square matrix, then det  is equal to :

Q6

 represent the sides of a triangleABC, then  is equal to :

Q7

  

    :

Q8

If abc are the sides of a ΔABC opposite to angle ABC respectively, then

                             :

Q9

The value of  lying between  and satisfying the equation  

        :

Q10

If a determinate of  is formed by using the number 1 or –1 then minimum value of determinant is :