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maw [93]
3 years ago
6

Write the recursive definition for the geometric sequence. Then write the exponential equation using regression

Mathematics
1 answer:
hodyreva [135]3 years ago
8 0

The geometric sequence 128,32,8,2 has a common ratio

The recursive definition of the geometric sequence is a_n = 4a_{n-1} where a1 = 128

<h3>How to determine the recursive definition?</h3>

The geometric sequence is given as:

128,32,8,2

Start by calculating the common ratio (r)

r = \frac{a_{n}}{a_{n-1}}

Substitute 2 for n

r = \frac{a_2}{a_1}

Substitute known values

r = \frac{128}{32}

Evaluate the quotient

r = 4

Substitute 4 for r in r = \frac{a_{n}}{a_{n-1}}

4 = \frac{a_{n}}{a_{n-1}}

Cross multiply

a_n = 4a_{n-1}

Hence, the recursive definition of the geometric sequence is a_n = 4a_{n-1} where a1 = 128

Read more about geometric sequence at:

brainly.com/question/24643676

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