# Math Help - Quick ? : Identifying function from series

1. ## Quick ? : Identifying function from series

Hello! Does anyone know offhand the function that the Maclaurin series given by [(-1)^n * x^(2n) / (n+1)], n=0..., represents? Thanks!!

2. Originally Posted by pi_cubed
Hello! Does anyone know offhand the function that the Maclaurin series given by [(-1)^n * x^(2n) / (n+1)], n=0..., represents? Thanks!!
Yeah, try looking at $\frac{\ln\left(1+x^2\right)}{x^2}$