Question

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

Solution

Correct option is

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Here, sum of squares of three members can be zero, if and only, if = b =c   

        

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SIMILAR QUESTIONS

Q2
Q3

 

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

         

Q5
Q6

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

Q7

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

Q8

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

Q9

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

Q10

  

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