Question

Simple math challenge
Topic:- Sequences and series

Answer 1

Find the sum of 25 terms of the series
3, 8 , 15 ,24 , 35 ......

Answer 2

Sequence is \(n(n+2)\) it seems

Answer 3

yup

Answer 4

then you can figure it out

Answer 5

Starting with \(n=1\), of course.

You can distribute and use the known formulas for \(\sum n^2\) and \(\sum n\).

Answer 6

i just learnt this and found something interesting in it