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OpenStudy (anonymous):
Simple math challenge Topic:- Sequences and series
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OpenStudy (anonymous):
Find the sum of 25 terms of the series 3, 8 , 15 ,24 , 35 ......
OpenStudy (anonymous):
Sequence is \(n(n+2)\) it seems
OpenStudy (anonymous):
yup
OpenStudy (anonymous):
then you can figure it out
OpenStudy (anonymous):
Starting with \(n=1\), of course. You can distribute and use the known formulas for \(\sum n^2\) and \(\sum n\).
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OpenStudy (anonymous):
i just learnt this and found something interesting in it
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