Question

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PLEASE HELP ME!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
Identify whether the series is a convergent or divergent geometric series and find the sum, if possible.

This is a convergent geometric series. The sum is –5.

This is a divergent geometric series. The sum is –5.

This is a convergent geometric series. The sum cannot be found.

This is a divergent geometric series. The sum cannot be found.

Answer 1

@whpalmer4 @satellite73

Answer 2

\[\sum_{i=1}^{\infty}15(4)^(i-1)\]

Answer 3

@satellite73 @primeralph

Answer 4

@Hero

Answer 5

@whpalmer4

Answer 6

divergent, sum can't be found.

Answer 7

this answer
This is a divergent geometric series. The sum is –5. makes no sense, ignore it

Answer 8

Ok .

Answer 9

since \(5>1\) this series diverges

Answer 10

Thank you @satellite73 and @seitys

Answer 11

@magbak to put a more complicated expression in the exponent, surround it by { }