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Viluxent Set 1 Paper 2 · Q3

Paper 2Trigonometry

How many solutions does

3sin⁡2x+5sin⁡xcos⁡x−2cos⁡2x=03\sin^2 x+5\sin x\cos x-2\cos^2 x=0

have for 0≤x<2π0\le x<2\pi?

A22
B33
C44
D55
E66
F88

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