2025 BDS PRELIMS P1 Q1

2025 BDS PRELIMS P1 Q1

Secondary 4
4 marks
2025 Bedok South Secondary School Prelims A Math Paper 1

Prove that \(\sin 2x - \cos 2x \tan x = \tan x\).[4]

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Answer:\(\sin 2x-\cos 2x\tan x=\tan x\), for \(\cos x\ne0\).

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