A-Level Maths OCR B (MEI) (H640)

#7.2 Sin, cos and tan of any angle

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Be able to use the definitions of sin⁡θ\sin{θ}, cos⁡θ\cos{θ} and tan⁡θ\tan{θ} for any angle.

By reference to the unit circle, sin⁡θ=y\sin{θ}=y, cos⁡θ=x\cos{θ}=x, tan⁡θ=yx\tan{θ}=\dfrac{y}{x}.

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