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Rosie's Papers Set A Paper 1 · Q12

Paper 1TrigonometryFunctions & graphs

How many solutions does (sin⁡x+cos⁡x)cos⁡2x=0(\sin x+\cos x)\cos^2x=0 have in the domain 0≤x≤π0\le x\le\pi?

A00
B11
C22
D44
EInfinite

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