Answered

Join the growing community of curious minds on IDNLearn.com and get the answers you need. Get prompt and accurate answers to your questions from our experts who are always ready to help.

Finding the sums
Find the sum of the first 7 terms of the following geometric series.

1/36-1/12+1/4-...

what is the sum?

Sagot :

Abidemiokinidn

The sum of the first 7 terms of the geometric series is 15.180

Sum of geometric series

The formula for calculating the sum of geometric series is expressed according to the formula. below;

GM = a(1-r^n)/1-r

where

r is the common ratio

n is the number of terms

a is the first term

Given the following parameters from the sequence

a = 1/36

r = -3

n = 7

Substitute

S = (1/36)(1-(-3)^7)/1+3
S = 1/36(1-2187)/4
S = 15.180

Hence the sum of the first 7 terms of the geometric series is 15.180

Learn more on sum of geometric series here: https://brainly.com/question/24221513

#SPJ1

We are happy to have you as part of our community. Keep asking, answering, and sharing your insights. Together, we can create a valuable knowledge resource. Thank you for trusting IDNLearn.com with your questions. Visit us again for clear, concise, and accurate answers.