Змінити мову

Englishعربى中文DeutschEspañolFrançaisहिन्दीHrvatskiItaliano日本語PortuguêsRomânăРусскийSvenskaTürkçeTiếng Việt

Увійдіть до Mathigon

або

Новий акаунт     Скинути пароль     

Circles and PiRadians Trig

Trigonometry

For most simple geometry problems, degrees and radians are completely interchangeable – you can either pick which one you prefer, or a question might tell you which unit to give your answer in. However, once you study more advanced trigonometry

Trigonometry is a branch of mathematics that studies the relationships between the sides and angles of triangles. It is primarily concerned with the trigonometric functions sine, cosine, tangent and their reciprocals.

Learn more…

or calculus

Calculus is the branch of mathematics dealing with limits, derivatives, integrals, and power series. Common problems include finding the slope of a curve, finding extrema, finding the rate of change of a function, and finding the area under a curve.

, it turns out that radians are much more convenient than degrees.

Most calculators have a special button to switch between degrees and radians. Trigonometric functions like sin

Sine is a trigonometric function written as sinθ. In a right angled triangle, it is the ratio of the opposite side and the hypotenuse.

Learn more…

, cos

Cosine is a trigonometric function written as cosθ. In a right angled triangle, it is the ratio of the adjacent side and the hypotenuse.

Learn more…

 and tan take angles as input, and their inverse functions arcsin, arccos and arctan return angles as output. The current calculator setting determines which units are used for these angles.

Try using this calculator to calculate that

sin(30°) = cos(1°) =
sin(30 rad) = cos(1 rad) =

DEG
7
8
9
sin
4
5
6
cos
1
2
3
tan
0
.
C
mode
Повний курсНаступний крок