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SQA Higher Maths Cosine

Cosine

This page covers the following topics:

Cosine of an angle is a ratio between the side adjacent to the angle and the hypotenuse of a triangle.

Cosine

Cosine is one of three trigonometric functions of an angle.

Values and applications

cos(x) is found by calculating the ratio of two sides of a right-angled triangle, the adjacent and the hypotenuse.

Right-angled traingles

The diagram shows a cosine graph.

Cosine graphs and transformations

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