Official papers

Official Specimen Paper 1 · Q10

Paper 1TrigonometryAlgebra

The curve y=cos⁡xy=\cos x is reflected in the line y=1y=1 and the resulting curve is then translated by π4\dfrac\pi4 units in the positive xx-direction. The equation of this new curve is

Ay=2+cos⁡(x+π4)y=2+\cos\left(x+\frac\pi4\right)
By=2+cos⁡(x−π4)y=2+\cos\left(x-\frac\pi4\right)
Cy=2−cos⁡(x+π4)y=2-\cos\left(x+\frac\pi4\right)
Dy=2−cos⁡(x−π4)y=2-\cos\left(x-\frac\pi4\right)

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