1. The problem statement, all variables and given/known data find the taylor polynomial f4 for f(x)=sin(2x) and a=pi/4 2. Relevant equations sin(x)=((-1)^n)(x^(2n+1))/((2n+1)!) 3. The attempt at a solution so replace x with 2x? you get ((-1)^n)(2x)^(2n+1)/(2n+1)!) is this right?