Question

How do you write the series `2+12+72+432+2592` using sigma notation?

Answer 1

The answer is `=sum_0^n2*6^n`

Explanation:

This is a geometric series,

`S=a+ar+ar^2+ar^3+....... ar^n`

`r=` the common ratio

Here, `r=6`

So, `S=sum_0^n2*6^n`