Aptitude - Surds and Indices - Discussion

Discussion :: Surds and Indices - General Questions (Q.No.12)

12. 

1 + 1 = ?
1 + a(n - m) 1 + a(m - n)

[A]. 0
[B].
1
2
[C]. 1
[D]. am + n

Answer: Option C

Explanation:

1 + 1 =
1  +  1
1 + an
am
1 + am
an
1 + a(n - m) 1 + a(m - n)

   = am + an
(am + an) (am + an)

   = (am + an)
(am + an)

   = 1.


Sunny Kumar said: (Jul 15, 2014)  
Could anybody please help me with this as where both 1's in numerator gone?

Thanks.

Karthik said: (Jan 8, 2017)  
Please solve this sum in details with DIRECTION TO SIMPLIFY EACH VALUES.

Rianshi Sharma said: (Mar 18, 2017)  
Step 1. Take negative power as denominator of positive power.
Step 2. LCM the whole thing.
Step 3. You will get the Result.

Nischal said: (Aug 22, 2017)  
Please explain the last step.

Mohit said: (Aug 30, 2017)  
The answer should been 1/2.

Ragav said: (Oct 14, 2018)  
Here, assign a=1.

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