W Wboyt New member Joined Feb 21, 2011 Messages 8 Mar 1, 2011 #1 Find the second derivative of y = e[sup:1yyytk8p]x[/sup:1yyytk8p]cosx at x = 0.
tkhunny Moderator Staff member Joined Apr 12, 2005 Messages 11,325 Mar 2, 2011 #2 Well, do it. Let's see your efforts. RBGTHGANH
