Question #fb8ba
1 Answer
If you are referring to the sequence formula for the sequence defined above, consider the two different patterns you can see happening, and construct a general term
First, if we ignore the signs, we see the sequence is an odd numbers sequence: 1, 3, 5, 7, 9. If we use
What about the signs? Well, the signs are alternating from positive to negative, with the negatives happening when
Multiplying these two expressions together gives us a formula for the term
Note:
Some people like to have the first term in a sequence be the