<ol class="abc-list"><li><div class="list-item-content"><span class="list-item-text">Sketch the graphs of \(y = -2 \cos 3x + 1\) and \(y = -\frac{2}{\pi}x + 1\) on the same axes, for&nbsp;\(0 \le x \le \pi\).</span><span class="inline-marks">[5]</span></div></li><li><div class="list-item-content"><span class="list-item-text">Explain how the number of solutions for&nbsp;\(2 \cos 3x = \frac{2}{\pi}x\) can be found using the graphs.</span><span class="inline-marks">[1]</span></div></li></ol>

Sketch the graphs of \(y = -2 \cos 3x + 1\) and \(y = -\frac{2}{\pi}x + 1\) on the same axes, for \(0 \le x \le \pi\).

Explain how the number of solutions for \(2 \cos 3x = \frac{2}{\pi}x\) can be found using the graphs.

2025 DSS PRELIMS P1 Q11

2025 DSS PRELIMS P1 Q11