Table shows values of trigonometric functions of selected angles. Included functions are: sine, cosine, tangens and cotangens. Both deegres and radians angles are presented.
Angle in radians
Angle in degrees
Trigonometric functions are:
sine (sinx) - the ratio of the length of the opposite side to the length of the hypotenuse,
cosine (cosx) - the ratio of the length of the adjacent side to the length of the hypotenuse,
tangens (tanx) - the ratio of the length of the side opposite to the angle to the length of the side adjacent to this angle,
cotangens (cotx) - the ratio of the length of the side adjacent to the angle to the length of the side that lies opposite this angle,
secans (secx) - the ratio of the hypotenuse length to the length of the side adjacent to the angle (inverse cosine),
cosecans (cosecx) - the ratio of the hypotenuse length to the length of the side opposite the angle of the sine.
The values of trigonometric functions for frequently used angles can be found in mathematical tables.
Sometimes we need to find the value of the selected trigonometric function for less typical angles, e.g. a sine of 51 degrees. Then the function's value can be calculated by developing a given function in the so-called Taylor's serie (or more general: power serie).