southrebels2
What is the 9th term of the geometric sequence where a1 = 7 and a6 = 7,168?



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a6 = 168 ?

southrebels2
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what?

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Sorry I can't understand the given ?!

southrebels2
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what given?

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a1 = 7 what else is given to solve this problem ? value of a6 ?

southrebels2
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a6= 7168

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so the GS (a, ar , ar^2 ,...)
so a = a1 = 7
a6 = \[ar ^{5}\]
7168=7 * r ^5
r=4
a9 = ar^8 = (7)(4^8)= 458752

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thank you!

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urw :)