Question 1087532: a1=5, r=3, a12=?
Found 3 solutions by ikleyn, MathLover1, Fombitz:
Answer by ikleyn(52788)   (Show Source):
Answer by MathLover1(20850)  (Show Source):
You can put this solution on YOUR website! it should be geometric sequence if given 
In general we write a geometric sequence like this:
{  ,  ,  ,  , ..., }
where:
is the  term, and
is the factor between the terms (called the "  ")
We can also calculate any term using the rule:
if given:
 ,  , to find  , where  , use the rule above and given data
Answer by Fombitz(32388)  (Show Source):
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