How to get that sin(4)-2*cos(2)*sin(2)
is zero? simplify, trigsimp, expand(trig=true) nothing works. Pallab -- You received this message because you are subscribed to the Google Groups "sympy" group. To post to this group, send email to sympy@googlegroups.com. To unsubscribe from this group, send email to sympy+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/sympy?hl=en.
