/ /1\\ |cosh|-|| | \x/| lim |-------| x->-1+\ -1 + x/
Limit(cosh(1/x)/(-1 + x), x, -1)
/ /1\\ |cosh|-|| | \x/| lim |-------| x->-1+\ -1 + x/
/ 2\ -1 -\1 + e /*e -------------- 4
= -0.771540317407622
/ /1\\ |cosh|-|| | \x/| lim |-------| x->-1-\ -1 + x/
/ 2\ -1 -\1 + e /*e -------------- 4
= -0.771540317407622
= -0.771540317407622