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Given the recursive formula shown, what are the first 4 terms of the sequence?

Given the recursive formula shown, what are the first 4 terms of the sequence?-example-1

1 Answer

3 votes

Answer:

5,20,80,320

Explanation:

a1 = 5

an = 4 an-1

Let n = 2

a2 = 4 * a1 = 4*5 = 20

Let n = 3

a3 = 4 * a2 = 4*20 = 80

Let n = 4

a4 = 4 * a3 = 4*80 = 320

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