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CBSE Class 10 Answered

This question is from the number systems
Asked by | 01 Jun, 2008, 06:54: PM
answered-by-expert Expert Answer
Let us take a = 2n+3   b=2n+1
a+b=4n+4   (a+b)/2=2n+2   as 2n is always even and even integer plus 2 is always even, so (a+b)/2 is always even.
Now a-b=2 and (a-b)/2=2/2=1 ,so this is odd.
Answered by | 25 Jul, 2008, 05:40: PM
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