Pre-Calculus B, 2nd Hour, Winter 2012
Tuesday, February 7, 2012
Geometric Sequences and Series
DEFINITION OF GEOMETRIC SEQUENCE
A sequence is a
geometric sequence
if the ratios of the consecutive terms are the same.
The number
r
is the
common ratio
of the sequence
THE NTH TERM OF A GEOMETRIC SEQUENCE
Explicit:
The nth term of a geometric sequence has the form
THE PARTIAL SUM OF A FINITE GEOMETRIC SEQUENCE
THE SUM OF AN INFINITE GEOMETRIC SERIES
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