Yes . Or simply look at the discriminant and it'll show you that there are no real solutions to the quadratic.
i dont know how to do trig with imaginary numbers
i dont think he will except no real solutions for that one
thanks a lot
btw is there any way to prove sin2a equals the thing u gave me?
aight i got tana = o, pi, pi/4, 5pi/4
Last edited by ruthvik; December 17th 2008 at 05:01 PM.