Math Is Fun Forum

  Discussion about math, puzzles, games and fun.   Useful symbols: ÷ × ½ √ ∞ ≠ ≤ ≥ ≈ ⇒ ± ∈ Δ θ ∴ ∑ ∫ • π ƒ -¹ ² ³ °

You are not logged in.

#1 2007-04-10 11:16:22

virtualinsanity
Member
Registered: 2007-03-11
Posts: 38

Interval and radius of convergence

This problem is puzzling me so any help would be greatly appreciated!

Find the interval and the radius of convergence for the the following series.
a) The Maclaurin series for f(x)=xe^x

So far, I've multiplied the series for e^x by x and I've gotten:

x+x^2 +x^3/2! + x^4/3!...

However, I'm confused about what to do next....

Offline

Board footer

Powered by FluxBB