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1.7.9 Solve simple trigonometric equations

Why can an inverse trigonometric function alone miss solutions?

A

Sine and cosine only take values in [−1,1][-1,1][−1,1].

B

θ≈116.6∘, 296.6∘, 476.6∘\theta\approx116.6^\circ,\ 296.6^\circ,\ 476.6^\circθ≈116.6∘, 296.6∘, 476.6∘.

C

Trig functions are periodic, so several angles can give the same value.

D

θ≈1.911, 4.373\theta\approx1.911,\ 4.373θ≈1.911, 4.373.

1.7.9 Solve simple trigonometric equations Flashcards

  1. A Level
  2. /Maths
  3. /1.7.9 Solve simple trigonometric equations

Flashcards for OCR (MEI) A Level Maths 1.7.9 Solve simple trigonometric equations, covering the key formulae, methods and definitions you need to recall for Component 01, Component 02 and Component 03. 20 cards, matched to the OCR (MEI) A Level Maths (H640) specification. Recall questions account for roughly 50% of marks at A Level Maths, so these target the marks you can secure before the paper starts.