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1.4.6 Trigonometry

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At standard angles, sin⁡30∘=\sin 30^\circ=sin30∘= [...]\text{[...]}[...], cos⁡45∘=\cos 45^\circ=cos45∘= 22\frac{\sqrt2}{2}22​​, and tan⁡60∘=\tan 60^\circ=tan60∘= 3\sqrt33​.

A

At standard angles, sin⁡30∘=\sin 30^\circ=sin30∘= 12\boxed{\frac12}21​​, cos⁡45∘=\cos 45^\circ=cos45∘= 22\frac{\sqrt2}{2}22​​, and tan⁡60∘=\tan 60^\circ=tan60∘= 3\sqrt33​.

B

θ=90∘, 210∘, 330∘\theta=90^\circ,\ 210^\circ,\ 330^\circθ=90∘, 210∘, 330∘.

C

Each root can produce a different set of angle solutions.

D

At standard angles, sin⁡30∘=\sin 30^\circ=sin30∘= 12\frac1221​, cos⁡45∘=\cos 45^\circ=cos45∘= 22\frac{\sqrt2}{2}22​​, and tan⁡60∘=\tan 60^\circ=tan60∘= 3\boxed{\sqrt3}3​​.

Card 1 of 20

1.4.6 Trigonometry Flashcards

  1. A Level
  2. /Maths
  3. /1.4.6 Trigonometry

20 flashcards on CCEA A Level Maths 1.4.6 Trigonometry: the key formulae, methods and definitions you need to recall for AS 1, AS 2, A2 1 and A2 2.

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