Banashree Patra

Branch Unspecified

21 Apr 2012

**Minimum Value Of Expression**

If a; b are positive real variables whose sum is a constant z, then the minimum

value of

sqrt((1 + 1/a)(1 + 1/b) )is

(A) z-1/z (B) z+ 2/z (C) z + 1/z (D) none of the above.

value of

sqrt((1 + 1/a)(1 + 1/b) )is

(A) z-1/z (B) z+ 2/z (C) z + 1/z (D) none of the above.

Prashanth_p@cchi

Branch Unspecified

23 May 2012

I think, the Answer is B.

Explanation: Considering a and b to be 1(simple value).

The equation would yield 2, which matches with option 2.

Correct me if I am missing something.

Explanation: Considering a and b to be 1(simple value).

The equation would yield 2, which matches with option 2.

Correct me if I am missing something.

zaveri

Branch Unspecified

26 May 2012

maybe you are not rightPrashanth_p@cchiI think, the Answer is B.

Explanation: Considering a and b to be 1(simple value).

The equation would yield 2, which matches with option 2.

Correct me if I am missing something.

if a=1 and b=1 then z=2

the equation gives 2

but option B gives 3

Prashanth_p@cchi

Branch Unspecified

28 May 2012

Apologies!!!!!!! I considered it to be (z + 2)/2.zaverimaybe you are not right

if a=1 and b=1 then z=2

the equation gives 2

but option B gives 3

Priya Nadkarni

Branch Unspecified

29 Aug 2012

So C is the answer

Shashank Moghe

Branch Unspecified

17 Sep 2014

This one is a real bedbug. Wont let me sleep. Do not give away the answer easily please. Awesome one.

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