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2025 SMBSS P1 Q8
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2025 SMBSS P1 Q8
Secondary 4
5 marks
Write down the period and amplitude of \(y=3\sin2x-2\).
[2]
Sketch the graph of \(y=3\sin2x-2\) for \(0\le x\le180^\circ\).
[3]
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Answer:
(a) Period \(180^\circ\), amplitude 3. (b) One cycle with maximum 1 and minimum \(-5\).
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