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Card 1 of 25

In trigonometric equations, what term describes the first angle solution provided by a calculator?

A
  • Rewrite tan⁡x\tan xtanx as sin⁡xcos⁡x\frac{\sin x}{\cos x}cosxsinx​
  • Multiply by cos⁡x\cos xcosx
  • Factorise the expression
B

Transform the interval for the inside angle: 10∘≤(2x+10∘)<370∘10^\circ \le (2x+10^\circ) < 370^\circ10∘≤(2x+10∘)<370∘.

C

The principal value.

D

For real angles, the values of sin⁡x\sin xsinx and cos⁡x\cos xcosx must always lie between −1\boxed{-1}−1​ and 111.

Card 1 of 25

10.4 Solving Trigonometric Equations Flashcards

  1. A Level
  2. /Maths
  3. /10.4 Solving Trigonometric Equations

25 flashcards on Edexcel A Level Maths 10.4 Solving Trigonometric Equations: the key formulae, methods and definitions you need to recall for Paper 1, Paper 2 and Paper 3.

Flashcards