Hi, I've been stuck on this problem for a good 30 minutes.
Find a power representation for the function and determine the radius of convergence.
f(x)=x^(2)arctan(x^(3))
I differentiated arctan(x) which is 1/(1+x^(2)) then changed it into the 1/(1-r) form so it becomes 1/(1-(-x^2)). I integrated both sides so it becomes arctan(x)=sigma (-1)^n (x^(2n+1))/(2n+1).
I am not sure what to do after this.
Find a power representation for the function and determine the radius of convergence.
f(x)=x^(2)arctan(x^(3))
I differentiated arctan(x) which is 1/(1+x^(2)) then changed it into the 1/(1-r) form so it becomes 1/(1-(-x^2)). I integrated both sides so it becomes arctan(x)=sigma (-1)^n (x^(2n+1))/(2n+1).
I am not sure what to do after this.