Question

\[\Huge \sum_{n=1}^{49}2n + 1\]

Answer 1

Quickest way to solve this?

Answer 2

How can I deal with constant?

Answer 3

so you know how to find the sum of an arithmetic series...?

Answer 4

Not really. (I'm currently teach myself how to find the sums, sorry)

Answer 5

so the series is

3 + 5 + 7 + 9+....

this is found by substituting values of n...

e.g. n = 1.......2 x 1 + 1 = 3
n = 2 2 x 2 + 1 = 5

and so on... that is the expansion.

you'll need to read about the sum of an arithmetic series to get an answer.

Answer 6

do you know any good link to the introduction to series (both arithmetic and geometric)?

inb4 google

Answer 7

have a look at purple math

Answer 8

Thanks.