# Math Help - inverse tangent series (euler's derivaiton)

1. ## inverse tangent series (euler's derivaiton)

Substitute x=z/N where z is finite into to obtain . Remembering that ,so ,conclude that

2. Originally Posted by bigb
Substitute x=z/N where z is finite into to obtain . Remembering that ,so ,conclude that
What exactly is your question? You seem to have a solution here?

3. Originally Posted by Mathstud28
What exactly is your question? You seem to have a solution here?
I plug in z/N but i cant get the first part?

4. Originally Posted by Mathstud28
What exactly is your question? You seem to have a solution here?
I get , but i dont know how to get the first part by getting rid of the arcsin part.