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Maths Made Easy TMUA Paper 1 · Q3

Paper 1TrigonometryAlgebra

How many solutions does the equation

4sin⁡4x−3sin⁡2x+sin⁡2xcos⁡2x=04\sin^4x-3\sin^2x+\sin^2x\cos^2x=0

have in the interval 0≤x≤2π0\le x\le2\pi?

A33
B44
C55
D66
E77

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