Question #cb85a
2 Answers
Explanation:
If we denote the terms of the sequence by
Note that,
Therefore, the recurrence formula for the sequence is given by,
Explanation:
Alternating positive negative is achieved by some
Let the
Note that
So for any
THIS IS A GEOMETRIC SEQUENCE
The first term is positive so
To make the first term positive we can do this:
Thus the full expression for the