Sine

The sine function is defined in a right-angled triangle as the ratio of the opposite side and the hypotenuse. Its graph is a sine curve. The function is defined from - to and takes values from -1 to 1.

Graph

Sine - Graph

Formulas

Right-angled triangle
Trigonometric formulas Trigonometric formulas

Calculators

Enter the angle α

α =
sin α =
Round to decimal places.

Enter the sin α value and select the angular unit

sin α =
α1 =
α2 =
Round to decimal places.

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