Question

The maximum value of , under the restrictions  is :

Solution

Correct option is

 

Consider: 

     

Multiplying both side by 

                                                                     

                                                                                          

But each of   

.  

But each  is positive. 

.

SIMILAR QUESTIONS

Q3

If  be acute angles and 

Q4

If  are in A.P. then  are in

Q5

Which of the following is correct?

Q6

 

The value of

       

Q7
Q8
Q9

Which of the following is rational number