QuestionExercise Sketch the graphs of the following, inserting relevant values. 1. $$\begin{array}{ll} f(x)=4 & 0<x<5 \\ f(x)=0 & 5<x<8 \\ f(x)=f(x+8) . & \end{array}$$ 4. $$\begin{aligned} f(x) & =\frac{x}{2} \quad 0<x<\pi \\ f(x) & =\pi-\frac{x}{2} \quad \pi<x<2 \pi \\ f(x) & =f(x+2 \pi) \end{aligned}$$ $$\text { 2. } \begin{aligned} f(x) & =3 x-x^{2} \quad 0<x<3 \\ f(x) & =f(x+3) . \end{aligned}$$ 3. $$\begin{array}{ll} f(x)=2 \sin x & 0<x<\pi \\ f(x)=0 & \pi<x<2 \pi \\ f(x)=f(x+2 \pi) . \end{array}$$ 5. $$\begin{array}{ll} f(x)=\frac{x^{2}}{4} & 0<x<4 \\ f(x)=4 & 4<x<6 \\ f(x)=0 & 6<x<8 \end{array}$$ $$f(x)=f(x+8) .$$