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24-05-2019
Mathematics

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The explicit rule for a sequence is given.

an= 2/5 (5)^n−1

The explicit rule for a sequence is given an 25 5n1 class=

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MathPhys MathPhys

24-05-2019

Step-by-step explanation:

A geometric series is:

an = a₁ (r)^(n-1)

Here:

an = 2/5 (5)^(n-1)

So a₁ = 2/5, and r = 5. So an = 5an-1.

Your answer is correct, well done!

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