Determining sine, cosine, tangent, cotangent, secant, and cosecant through a right triangle
In order to find the trigonometric functions of arbitrary angle α, we assume a random right triangle ABC, which contains angle α.
Angle C is the right angle.
AC and BC sides are legs of the ABC triangle.
The AB is the hypotenuse of the ABC triangle.
Let us denote angle A as α.
The BC side opposite to angle α will be denoted as a.
The AC side adjacent to angle α will be denoted as b.
Hypotenuse AB will be denoted as c.