What is the Maclaurin series for exe^xex?
∑n=0∞(−1)nx2n\sum_{n=0}^{\infty} (-1)^n x^{2n}∑n=0∞(−1)nx2n
∑n=1∞xnn\sum_{n=1}^{\infty} \frac{x^n}{n}∑n=1∞nxn
∑n=0∞(−1)nxnn!\sum_{n=0}^{\infty} \frac{(-1)^n x^n}{n!}∑n=0∞n!(−1)nxn
∑n=0∞xnn!\sum_{n=0}^{\infty} \frac{x^n}{n!}∑n=0∞n!xn