9.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{bb21001f-fe68-4776-992d-ede1aae233d7-24_675_835_251_616}
\captionsetup{labelformat=empty}
\caption{Figure 3}
\end{figure}
Figure 3 shows a sketch of
- the curve with equation \(y = \tan x\)
- the straight line l with equation \(y = \pi x\)
in the interval \(- \pi < x < \pi\)
- State the period of \(\tan x\)
- Write down the number of roots of the equation
- \(\tan x = ( \pi + 2 ) x\) in the interval \(- \pi < x < \pi\)
- \(\tan x = \pi x\) in the interval \(- 2 \pi < x < 2 \pi\)
- \(\tan x = \pi x\) in the interval \(- 100 \pi < x < 100 \pi\)