Skip to content

Course home

1.5.7 Exact values in radians (A-level only)

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+\strong2π)=sin⁡θ\sin(\theta+\strong{\boxed{2\pi}})=\sin\thetasin(θ+\strong2π​)=sinθ and cos⁡(θ+\strong2π)=cos⁡θ\cos(\theta+\strong{2\pi})=\cos\thetacos(θ+\strong2π)=cosθ.

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)

Flashcards for OCR A Level Maths 1.5.7 Exact values in radians (A-level only), covering the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3. 25 cards, matched to the OCR A Level Maths (H240) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.