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OpenStudy (anonymous):
find the the term in the geometric sequence nth term if a6=27, r=3
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OpenStudy (dan815):
a1,a2,a3,a4,a5,A6=27,a7,a8... sooo 27 is the 6th term, we have to write an equation for any term
OpenStudy (dan815):
6th term we got by saying a6=a1*r^5 so An an=a1*r^(n-1)
OpenStudy (dan815):
you have to solve for a1 first
OpenStudy (dan815):
27=a1*3^5 a1=27/3^5 =?
OpenStudy (dan815):
then sub a1 and r into the An formula
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OpenStudy (anonymous):
so what is my n in the an formula?
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