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1.5.7 Exact values in radians (A-level only)

Card 1 of 25

For an angle of 1 radian, how does arc length compare with radius?

A

Tangent has period π\boxed{\pi}π​, so tan⁡(θ+π)=tan⁡θ\tan(\theta+\pi)=\tan\thetatan(θ+π)=tanθ.

B

The arc length equals the radius.

C

33\frac{\sqrt3}{3}33​​

D

The periodicity identities are sin⁡(θ+2π)=sin⁡θ\sin(\theta+\boldsymbol{\boxed{2\pi}})=\sin\thetasin(θ+2π​)=sinθ and cos⁡(θ+2π)=cos⁡θ\cos(\theta+\boldsymbol{2\pi})=\cos\thetacos(θ+2π)=cosθ.

Card 1 of 25

1.5.7 Exact values in radians (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /1.5.7 Exact values in radians (A-level only)

25 flashcards on OCR A Level Maths 1.5.7 Exact values in radians (A-level only): the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

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