x E ------ 2 x - 1
E^x/(x^2 - 1)
2.71828182845905^x/(-1.0 + x^2)
x e ---------------- (1 + x)*(-1 + x)
exp(x)/((1 + x)*(-1 + x))
x (cosh(1) + sinh(1)) -------------------- 2 -1 + x
cosh(x) + sinh(x) ----------------- 2 -1 + x
(cosh(x) + sinh(x))/(-1 + x^2)