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1.8 E: Trigonometry

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Question 54

In triangle ABCABCABC, AB=12 cmAB = 12 \text{ cm}AB=12 cm and angle B=40∘B = 40^\circB=40∘

a.

Given AC=10 cmAC = 10 \text{ cm}AC=10 cm, find the two possible values for angle CCC, correct to 1 decimal place.

[4]
b.

Given instead that the area of the triangle is 752 cm275\sqrt{2} \text{ cm}^2752​ cm2, find BCBCBC.

[2]
Markscheme

1.8 E: Trigonometry Questions

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

317 exam-style questions on AQA A Level Maths 1.8 E: Trigonometry, 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. Each one has a worked solution and a mark scheme showing where the marks go.

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