rogersamurai88
Well-Known Member
sin??±sin??=2sin??1/2 (?±?)? cos??1/2 (???)? f(x)=a_0+?_(n=1)^??(a_n cos??n?x/L?+b_n sin??n?x/L? ) a^2+b^2 R. Key all of this is trig. I know you don't understand it but it basically means the difference of two friends as a product. Which if you would it is gonna be like me and you. Nomatter how you look at it I will always beat you. now you can say you learned something today.