Which function has the Maclaurin series ∑n=0∞(−1)nx2n(2n)!\sum_{n=0}^{\infty} \frac{(-1)^n x^{2n}}{(2n)!}∑n=0∞(2n)!(−1)nx2n?
sin(x)\sin(x)sin(x)
cos(x)\cos(x)cos(x)
sinh(x)\sinh(x)sinh(x)
cosh(x)\cosh(x)cosh(x)