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Degger [83]
3 years ago
14

Find the first term and the common difference of the arithmetic sequence whose 5 th term is 3 and 19 th term is 45 .

Mathematics
1 answer:
gizmo_the_mogwai [7]3 years ago
6 0
Where (a) is first term
and common diff is (d)

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Step-by-step explanation:

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What’s the pattern of -1, -8, -27, and -64
AURORKA [14]

Hello from MrBillDoesMath!

Answer:

a(n) = (-n)^3  where n = 1,2,3,...


Discussion:

The pattern  1,8,27, 64... is immediately recognizable as the the cube of the positive integers. But this question has a minus sign appearing before  each entry, suggesting we try this:


 - 1  =  (-1)^3

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That's what the problem statement asked for . The answer is equivalently

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