Question

use the formula to evaluate the series 1+2+4+8+... a10

Answer 1

it looks like a geometric series

Answer 2

2^0 + 2^1 + 2^2 + 2^3 + ...

Answer 3

you need to find the tenth term?
then use\[a_{10}=a_1\times r^{10-1}\]

Answer 4

you are given the 1st term, and given the common ratio, so it's your turn....

Answer 5

yes , it is geometric series @perl

Answer 6

what do you want then, the sum of 10 terms? (if not the 10th term itself)

Answer 7

I don't remember the formula for the sum of the geometric series, but you can surely google it...