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slava [35]
4 years ago
15

64,-48,36,-27 which formula can be used to describe the sequence

Mathematics
1 answer:
ryzh [129]4 years ago
6 0

Answer:

see explanation

Step-by-step explanation:

These are the terms of a geometric sequence with n th term formula

a_{n} = a (r)^{n-1}

where a is the first term and r the common ratio

r = \frac{-48}{64} = \frac{36}{-48} = - \frac{3}{4}

the first term a = 64, hence

a_{n} = 64 (-3/4)^{n-1}

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