actually got two questions but both are related so put them in the same place
the question asks
Determine whether the geometric series is convergent or divergent. If it is convergent, find its sum.
1.) E 6(0.9)^(n-1)
2.) E ---------------
the (E) is the sigma sign asking for sum
the Inf is infinity and n = 1 is inital starting point
they want us to evaluate the series sum from 1 to infinity
The Attempt at a Solution
not really sure where to start. i can figure out the converging or diverging part just plug in some numbers and see if it is getting bigger (going to infinity) or if it leavels off.
not sure how to find the sum.
probaly just a simple formula but the Professor did not give it to us.