Guest Session: 1 Question Remaining. Create Account to save progress.
Login
Power Seriesmedium
0:00.0

The function f(x)=x2−1x2+9f(x) = \frac{x^2 - 1}{x^2 + 9}f(x)=x2+9x2−1​ has a Taylor series expansion centered at a=4a = 4a=4. What is the radius of convergence RRR of this series?