M1
3 marks · average 2.0 18% scored 0
The question in our own words · page 4
\(f(x)=2\cos(2x)+1\) for \(x\) from \(0\) to \(2\pi\). Solve \(f(x)=0\). No calculator.
Source: VCAA 2025 VCE Mathematical Methods Examination 1, Question 3b
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