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Card 1 of 22

What is the period of the functions y=sin⁡xy=\sin xy=sinx and y=cos⁡xy=\cos xy=cosx?

A

Replace cos⁡2x\cos^2 xcos2x with 1−sin⁡2x1 - \sin^2 x1−sin2x.

B

You lose solutions where sin⁡x=0\sin x = 0sinx=0.

C

360∘360^\circ360∘

D

The identity tan⁡x=sin⁡xcos⁡x\tan x = \frac{\sin x}{\cos x}tanx=cosxsinx​ involves division by zero.

Card 1 of 22

Trigonometric Identities and Equations Flashcards

  1. A Level
  2. /Maths
  3. /Trigonometric Identities and Equations

22 flashcards on Edexcel A Level Maths Trigonometric Identities and Equations: the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards