A geometric sequence is a set of terms defined by a constant common ratio: each consecutive term is being multiplied by a certain number. This number is what we call the ratio or .
The general formula for finding the nth term of a geometric sequence is:
.
Additional Information:
The formula in option 2 is for finding the nth term of an arithmetic sequence; the difference between the two is that instead of a common ratio, in an arithmetic sequence, there is a common difference present.
Meaning, every term is being added by a certain number, whether positive nor negative.
Answers & Comments
Answer:
the answer is an=a1rn-1 or option 1
Answer:
Option 1.
Step-by-step explanation:
A geometric sequence is a set of terms defined by a constant common ratio: each consecutive term is being multiplied by a certain number. This number is what we call the ratio or
.
The general formula for finding the nth term of a geometric sequence is:
Additional Information:
The formula in option 2 is for finding the nth term of an arithmetic sequence; the difference between the two is that instead of a common ratio, in an arithmetic sequence, there is a common difference present.
Meaning, every term is being added by a certain number, whether positive nor negative.