What is the value of given expression :

What is the value of (1/(1+an-m))+(1/1+am-n))?

  1. 1
  2. 1.5
  3. 2
  4. 2.5
Anurag Mishra Professor Asked on 17th December 2015 in Maths.
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  • 1 Answer(s)

    Answer:  (1) 1

    Solution:-
    {1/(1 + an – m ) + 1/(1 + am – n)}
     = {1/(1 + an/am) + 1/(1 + am/an)}
     = {1/(am + an)/am + 1/(an + am)/an}
     = {am/(am + an)  + an/(an + am) }
     = (am + an)/(am + an)
     = 1

    Hence, the answer is (1) 1.

     

    Anurag Mishra Professor Answered on 17th December 2015.
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