AQA GCSE Mathematics · 8300
Specification G21 · Paper 1, Paper 2, Paper 3
Revise: Exact Trigonometric ValuesCosine uses exactly the same pattern in reverse. This reflects the complementary relationship between sine and cosine.
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GCSE Mathematics · key term
The ratio of the side adjacent to an angle to the hypotenuse in a right-angled triangle.
Used by AQA and Edexcel
Specification G21 · Paper 1, Paper 2, Paper 3
Revise: Exact Trigonometric ValuesCosine uses exactly the same pattern in reverse. This reflects the complementary relationship between sine and cosine.
Specification G20 · Paper 1, Paper 2, Paper 3
The trigonometric ratio equal to adjacent divided by hypotenuse.
Check which function is requested: the sine and cosine rows contain the same values in opposite orders, but they are not interchangeable at the same angle except at .
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Select sine, cosine or tangent so that the equation contains those two sides.