M1
2 marks · average 1.0 34% scored 0
The question in our own words · page 4
Sketch \(y=2\cos(2x)+1\) for \(x\) from \(\tfrac{\pi}{2}\) to \(\tfrac{3\pi}{2}\) only, on axes like the paper’s (\(x\) up to \(2\pi\), \(y\) from \(-2\) to \(3\)). Label the endpoints with their coordinates. No calculator.
Source: VCAA 2025 VCE Mathematical Methods Examination 1, Question 3c
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