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Use the formula for the general term (the nth term) of a geometric sequence to find a(sub5) with the given first term a(sub1)=9, and a common ratio, r=5sub=subscript

Use the formula for the general term (the nth term) of a geometric sequence to find-example-1
User Piyush Balapure
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1 Answer

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20 votes

The general expression for the n terms :


a_n=a_1r^(n-1)

From the given data :

first term = 9, Common Ratio: r = 5

we need to find the fifth term : n = 5

Substitute the given value in the expression for

User Hackonteur
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