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How to find the sum of series of hp 1/19+1/25+1/31+....

How to find the sum of series of hp
1/19+1/25+1/31+....
 

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1 Answers

Lavish
13 Points
5 years ago
As these are in HP so there reciprocal must be in AP
So,: 19,25,31..... are in AP with first term 19 and common difference 6.
Now, Sn = n/2(2a+(n-1)d)
 Hope this helps           

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