Maximum value

Find maximum value of
1/b+c +b/c+a +c/a+b
for a,b,c≥0

6 Answers

39
Dr.House ·

the question should be a/(b+c) +b/(c+a) + c/(a+b)

66
kaymant ·

in which case the answer would be 3/2. the famed Nesbitt's.

P.S. yes.. 3/2 is the minimum. Thanx rahul for pointing it out. But then the given expression does not have an absolute maximum as can be seen by taking any two of a,b,c → 0.

1
rahul1993 Duggal ·

@kaymant sir
the minimum value would be 3/2

11
Aditya Balasubramanyam ·

I did'nt Undertsand ... .. Can u please tell me how did you solve it?

1
rahul1993 Duggal ·

@aditya
you can check out various proofs of nesbitt's inequality here http://en.wikipedia.org/wiki/Nesbitt's_inequality

39
Dr.House ·

http://targetiit.com/iit-jee-forum/posts/iit-jee-past-question-trigonometry-4026.html

http://targetiit.com/iit-jee-forum/posts/07-03-09-prove-this-inequality-3323.html

should also help u

Your Answer

Close [X]