Chapter 6.3, Problem 166E

The following exercises make use of the functions $S_5(x)=x+\frac{x^3}{6}+\frac{x^5}{120}$ and $C_4(x)=x-\frac{x^2}{2}+\frac{x^2}{24}$ on $[-\pi ,\pi ]$ .

166. [T] Plot |2S₅(x)C₄(x) − sin(2x)| on $[-\pi ,\pi ]$ .