Question

Which series represents this situation? 1+1*7+1*7^ 2 +...1*7^ 6; 1+1*7+1*7^ 2 +...1*7^ 7; 7+1*7+1*7^ 2 +... 1*7^ 6; 7+1*7+1*7^ 2 +...1*7^ 7

Answer 1

Explanation:

The series is missing from the question. I will answer this question with a general explanation by using the following similar series:

`\sum\limits^6_(n=0) 7^n`

Required

The series

To do this, we simply replace n with the values

`\sum\limits^6_(n=0)` means n starts from 0 and ends at 6

`\sum` means the series is a summation series

So, we have:

`\sum\limits^6_(n=0) 7^n = 7^0 + 7^1 + 7^2 + ...... + 7^6`

`\sum\limits^6_(n=0) 7^n = 1 + 7 + 7^2 + ...... + 7^6`