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DaniilM [7]
3 years ago
9

Find the fifth term in the geometric sequence, given the first term and the common ratio. a1=5 and r=-3

Mathematics
1 answer:
Lunna [17]3 years ago
7 0

Answer:

<h2>405</h2>

Step-by-step explanation:

The nth term of a geometric sequence is given by the formula

Tn=ar^n^-^1

Given data

first term  a1=5 and

common ratio r=-3

n= 5

T5= 5*3^5^-^1\\T5= 5*3^4\\T5=5*81\\T5=405

The 5th term is 405

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Step-by-step explanation:

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I hope this helps!

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