Question

  

    :

Solution

Correct option is

2

  

                                                     

On differentiating with respect to x

    

                                              

.

SIMILAR QUESTIONS

Q1
Q2

 

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

         

Q4
Q5

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

Q6

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

Q7

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

Q8

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

Q9

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

Q10

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

                             :