Answer Happy

Let it be f(x) = arctan(x²). What is Use series of f(x) to calculate the answer. You can use the following information when creating the series: D(arctan(2)) = 1 1+x² f(10) (0) (the 10th order derivative value at zero)? Σ²=1₁²|²|<1 |r| < 1 k=0