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1.5.12 Double angle and compound angle formulae (A-level only)

Card 1 of 20

sin⁡(A+B)=\sin(A+B)=sin(A+B)= [...]\text{[...]}[...]

A

cos⁡2A=1−2sin⁡2A\cos2A=1-2\sin^2Acos2A=1−2sin2A

B

43\dfrac4334​

C

sin⁡(A+B)=\sin(A+B)=sin(A+B)= sin⁡Acos⁡B+cos⁡Asin⁡B\boxed{\sin A\cos B+\cos A\sin B}sinAcosB+cosAsinB​

D

It means (sin⁡θ)2(\sin\theta)^2(sinθ)2, not sin⁡(θ2)\sin(\theta^2)sin(θ2).

Card 1 of 20

1.5.12 Double angle and compound angle formulae (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /1.5.12 Double angle and compound angle formulae (A-level only)

20 flashcards on OCR A Level Maths 1.5.12 Double angle and compound angle formulae (A-level only): the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards