Skip to content

Course home

1.8 E: Trigonometry

Easy Medium Hard

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74

Question 49

One of the expressions below is equal to $cos⁡(A−B)\cos(A - B)$ for all values of $A\,$ and $B$ .

Identify this expression.

Tick one box.

A

$cos⁡Acos⁡B−sin⁡Asin⁡B\cos A\cos B - \sin A\sin B$

B

$cos⁡Acos⁡B+sin⁡Asin⁡B\cos A\cos B + \sin A\sin B$

C

$sin⁡Acos⁡B−cos⁡Asin⁡B\sin A\cos B - \cos A\sin B$

D

$sin⁡Asin⁡B−cos⁡Acos⁡B\sin A\sin B - \cos A\cos B$

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.

Question bank