Identify the Sequence 5 , -30 , 180 , -1080

$5$ , $- 30$ , $180$ , $- 1080$

Step 1

This is a geometric sequence since there is a common ratio between each term. In this case, multiplying the previous term in the sequence by $- 6$ gives the next term. In other words, $a_{n} = a_{1} r^{n - 1}$ .

Geometric Sequence: $r = - 6$

Step 2

This is the form of a geometric sequence.

$a_{n} = a_{1} r^{n - 1}$

Step 3

Substitute in the values of $a_{1} = 5$ and $r = - 6$ .

$a_{n} = 5 {(- 6)}^{n - 1}$

Identify the Sequence 5 , -30 , 180 , -1080

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