so ur saying its zero, i just figured its -infintie because i remeber that the bounds of arctan from pie/2 to -pie/2 are undifined and for arcsin its boounds are restricted at pie/2 to -pie/2.. so if u take ur ti 83 an put in a really big negative number for arctan it keeps going.. but if u do the same for arc sin it doesnt exsist.. so i conclue arctan-infite = -infinite.
is this righT??