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3.5.6 Trigonometry (A-level only)

Card 1 of 24

What quotient gives tan⁡θ\tan\thetatanθ?

A

Equating the coordinate and geometric products gives cos⁡(A−B)=cos⁡Acos⁡B+sin⁡Asin⁡B\cos(A-B)=\cos A\cos B+\sin A\sin Bcos(A−B)=cosAcosB+sinAsinB.

B

In a sine compound-angle formula, the sign between the terms is the same as the sign between the angles.

C

tan⁡θ=sin⁡θcos⁡θ\tan\theta=\dfrac{\sin\theta}{\cos\theta}tanθ=cosθsinθ​

D

sin⁡2θ+cos⁡2θ=1\sin^2\theta+\cos^2\theta=1sin2θ+cos2θ=1

Card 1 of 24

3.5.6 Trigonometry (A-level only) Flashcards

  1. A Level
  2. /Maths
  3. /3.5.6 Trigonometry (A-level only)

24 flashcards on WJEC A Level Maths 3.5.6 Trigonometry (A-level only): the key formulae, methods and definitions you need to recall for AS Unit 1, AS Unit 2, A2 Unit 3 and A2 Unit 4.

Flashcards