Asked by brenda
Find the 8th term of the geometric sequence 7, -21, 63, ...7,−21,63
Answers
Answered by
PsyDAG
With the gap "..." we don't know what the 8th term would be.
Answered by
oobleck
Looks like another of those posts where numerical stuff is duplicated. Haven't figured out why that happens so much.
If the sequence is 7, -21, 63 ...
then
a = 7
r = -3
and the 8th term is 7*(-3)^7 = -15309
If the sequence is 7, -21, 63 ...
then
a = 7
r = -3
and the 8th term is 7*(-3)^7 = -15309
Answered by
ROAN AIRON O. ELMA
Thank you
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