Questão 198364

\(\sum_{k=0}^{\infty}\) \(\frac{(-1)^kx^{k+1}}{(2k)!}\);\(R=+∞\)

\(\sum_{k=0}^{\infty}\) \(\frac{(-1)^{2k}x^{2k-1}}{(2k-1)!}\);\(R=-∞\)

\(\sum_{k=0}^{\infty}\frac{(-1)^{2k+1}x^{2k+1}}{(2k+1)!}\);\(R=+∞\)

\(\sum_{k=0}^∞\) \(\frac{\left(-1\right)^kx^{2k}}{\left(2k+1\right)!};\) \(R=-∞\)

\(\sum_{k=0}^∞\) \(\frac{\left(-1\right)^kx^{2k+1}}{\left(2k+1\right)!}\) ;\(R=+∞\)