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Official Specimen Paper 1 · Q18

Paper 1TrigonometryGeometry

The angle xx is measured in radians and is such that 0≤x≤π0\le x\le\pi.

The total length of any intervals for which −1≤tan⁡x≤1-1\le\tan x\le1 and sin⁡2x≥0.5\sin2x\ge0.5 is

Aπ12\frac\pi{12}
Bπ6\frac\pi6
Cπ4\frac\pi4
Dπ3\frac\pi3
E5π12\frac{5\pi}{12}
Fπ2\frac\pi2
G5π6\frac{5\pi}6

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