Question

@campbell_st I have never done something like this could you be of service?!? Geometric series.

Answer 1

@TrojanPoem do you know how to do this?

Answer 2

add

Answer 3

put \(i-1\) get \(6^{1-1}=6^0=1\)

Answer 4

then put a plus sign
then put \(i=2\) get
\[6^{2-1}=6^1=6\]\

Answer 5

then put \(i=3\) etc \[1+6+6^2+6^3\]and add them up

Answer 6

\[\sum_{i=1}^{4}6^{i-1}\]
\[=6^{1-1}+6^{2-1}+6^{3-1}+6^{4-1}=6^0+6^1+6^2+6^3=1+6+36+108=?\]

Answer 7

i would use a calculator

Answer 8

http://www.wolframalpha.com/input/?i=1%2B6%2B6^2%2B6^3

Answer 9

Thank you @satellite73

Answer 10

correction
1+6+36+216=?