Given the sequence:
To find the closed for we use the equation
So, why do we use that equation, how does it work? Why are those signs switched, so positive becomes a negative and vice versa?
I know the answer and how to get it, so
I just need some help on how all this works.
Here's a primitive explanation . . .
Given the sequence: .
To find the closed for we use the equation .
So why do we use that equation, how does it work?
We have: .
Assume that is an exponential function: .
Then we have: .