cos(1+2i)
sin(1+2i)
tan(1+2i)
cot(1+2i)
sec(1+2i)
csc(1+2i)
arccos(1+2i)
arcsin(1+2i)
arctan(1+2i)
arccot(1+2i)
arcsec(1+2i)
arccsc(1+2i)