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1.5.5 Small angle approximations (A-level only)

Card 1 of 20

For small θ\thetaθ measured in radians, sin⁡θ≈\sin\theta\approxsinθ≈ [...]\text{[...]}[...].

A

For small θ\thetaθ measured in radians, sin⁡θ≈\sin\theta\approxsinθ≈ θ\boxed{\theta}θ​.

B

π36\frac{\pi}{36}36π​ radians.

C

Cancelling a factor of θ\thetaθ assumes θ≠0\boxed{\theta\ne0}θ=0​, even when describing behaviour near zero.

D

Cancellation gives a near-zero expression under the assumption θ≠0\theta\ne0θ=0.

Card 1 of 20

1.5.5 Small angle approximations (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /1.5.5 Small angle approximations (A-level only)

20 flashcards on OCR A Level Maths 1.5.5 Small angle approximations (A-level only): the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards