Sine

Sine is one of the trigonometric functions of mathematical concept trigonometry. The ration between opposite side and hypotenuse of a right angle triangle is defined trigonometric ratio sine. Sine is written in its short form which means its abbreviated form i.e Sin but written this function without angle is absolutely wrong because it is dependent on angle of the right angle triangle.

Imagine a right angle triangle as shown in the picture in this web page and its sides are opposite side, adjacent side and hypotenuse and its angle between hypotenuse and adjacent side is Theta θ. By considering angle of right angle triangle, it can be written Sin θ.

According to definition of sine, it can be expressed in mathematical form. We know that the ratio between length of the opposite side of a right angle triangle and its hypotenuse is known Sine.

Sin θ

=

Length of the Opposite Side Length of the Hypotenuse

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5. Definition of Cosecant