One of the mysteries of the English language finally explained.
The trigonometric function that is equal to the ratio of the side adjacent to an acute angle (in a right-angled triangle) to the hypotenuse.
- ‘The optical path difference is directly proportional to the cosine of the angle of refraction through the coating.’
- ‘I can remember roughly how to differentiate a standard xy formula but sines, cosines and tangents are a mystery.’
- ‘Similar questions are investigated for the sine transforms rather than the cosine transforms.’
- ‘In fact, it corresponds to the graph of a function called the hyperbolic cosine.’
- ‘If the two angles are the same we get the sines and cosines of double the angle.’
Top tips for CV writingRead more
In this article we explore how to impress employers with a spot-on CV.