Which value represents the atFind the Maclaurin series for f(x) using the definition of a Maclaurin series. omic radius?

Find the Maclaurin series for f(x) using the definition of a Maclaurin series. [Assume that f has a power series expansion. Do not show that Rn(x)→0.] Also find the associated radius of convergence. f(x) = 2^x