9.
\begin{figure}[h]
\includegraphics[alt={},max width=\textwidth]{b063f4ea-372b-4193-b8fe-a9f8017d7349-18_718_882_219_596}
\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 \(\tan x\)
(1) - Write down the number of roots of the equation
- \(\tan x = ( \pi + 2 ) x\) in the interval \(- \pi < x < \pi\)
(1) - \(\tan x = \pi x\) in the interval \(- 2 \pi < x < 2 \pi\)
(1) - \(\tan x = \pi x\) in the interval \(- 100 \pi < x < 100 \pi\)
(1)