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1.8 E: Trigonometry

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Question 18

In triangle $A B C$ , $2\sqrt{3}$ cm, $B C = 4$ cm and angle $A B C = 30°$ .

Find the exact area of triangle $A B C$ .

[2]

Find the exact length of $A C$ .

[4]

Markscheme

1.8 E: Trigonometry Questions

A Level
Maths
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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