Sum of an infinite geometric series

Algebra
Tutor: None Selected Time limit: 1 Day

Dec 6th, 2015

Thank you for the opportunity to help you with your question!

1) q= -4 , the sum is divergent

2) q = 4/7, the sum is convergent and 

S = a1/(1-q) = 3*4/7/(1-4/7) = (12/7)/(3/7) =4 

Please let me know if you need any clarification. I'm always happy to answer your questions.
Dec 6th, 2015

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