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1.8 E: Trigonometry

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Question 77
a.

Solve, for 360≤θ<720∘360 \leq \theta < 720^\circ360≤θ<720∘, the equation,

3cos⁡θ=8tan⁡θ 3 \cos \theta = 8 \tan \theta 3cosθ=8tanθ
[5]
b.

The first four positive solutions, in order of size, of the equation cos⁡(2a+50)=0.7\cos(2a + 50) = 0.7cos(2a+50)=0.7 are a1,a2,a3 a_1, a_2, a_3\,a1​,a2​,a3​ and a4a_4a4​. To the nearest degree find the value of a4a_4a4​.

[3]

1.8 E: Trigonometry Questions

  1. A Level
  2. /Maths
  3. /1.8 E: Trigonometry

Practise AQA A Level Maths 1.8 E: Trigonometry with exam-style questions for A Level Maths. 239 questions covering 1.8.1 Trigonometric definitions, rules and radians, 1.8.2 Small angle approximations (A-level only), 1.8.3 Trigonometric functions and exact values, 1.8.4 Reciprocal and inverse trigonometric functions (A-level only), 1.8.5 Trigonometric identities, 1.8.6 Compound and double angle formulae (A-level only), 1.8.7 Solving trigonometric equations, 1.8.8 Proofs with trigonometric identities, and 1.8.9 Trigonometry in context, matched to the AQA A Level Maths (7357) specification and written in Paper 1, Paper 2 and Paper 3 style. Every question includes a full worked solution and mark scheme, so you can see where marks are awarded rather than just whether you got the answer right.

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