cos
1
6.3
- noun
- /kɔz/
- Specialized
:
coseno
- The cos function is essential for understanding the relationships between the sides of a right-angled triangle.
- cos theta
- = cos
- 2 cos
I mean, I'm sure it means something, but what's Y equals sine of X plus cosine of X?
- I mean, I'm sure it means something, but what's Y equals sine of X plus cosine of X?
- I hope that helped you understand sines, cosines, tangents, cosecant, cotangents.
Examples
-
So the integral of the cosine function, regardless of what's inside it, regardless of what's inside, is sine of the inside.
-
I hope that helped you understand sines, cosines, tangents, cosecant, cotangents.
-
(In general, the air mass number is 1/cos Theta, where Theta is the angle of the Sun measured relative to overhead.)
Academic text (1993) -
In a right-angled triangle, the value of cos theta is calculated as the ratio of the length of the adjacent side to the length of the hypotenuse.
-
When learning trigonometry, students often use the cos function to solve for angles in right triangles.
Synonyms
3
6.7
The ratio of the side next to an angle to the longest side in a right triangle
Compounds
Surface Forms
Etymology
Cos is short for cosine, a name that comes from a Latin phrase meaning 'complement of sine'. So cos gives the ratio of the adjacent side to the hypotenuse in a right triangle, which is why it measures how 'wide' or 'narrow' an angle is.