CPM Homework Help : INT1 Problem 10-22

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10-22.

Write the first four terms of each of the following sequences.

$a_n=3·5^{n−1}$

Hint (a):
Evaluate the equation for $n = 1, n = 2, n = 3,\text{ and }n = 4$ .

$a_1=10,\ a_{n+1}=-5a_n$

Hint (b):
This sequence is being defined recursively.
The first term is $10$ .
The next term is calculated by multiplying the previous term by $−5$ .
Continue the pattern.

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