The function defined by :
sin : R -> R : x -> sin(x)is called, the sine function.
The images are bounded in [-1,1] and the period is 2.pi .
We say that the range of the function is [-1,1].
The Cosine Function The function defined by :
cos : R -> R : x -> cos(x)is called, the cosine function.
The images are bounded in [-1,1] and the period is 2.pi .
The range of the function is [-1,1].
The Tangent Function The function defined by :
tan : R -> R : x -> tan(x)is called, the tangent function.
Now, the period is pi and the images are not defined in x = (pi/2) + k.pi
The range or image is R.
The Cotangent Function
cot : R -> R : x -> cot(x)is called, the cotangent function.
The period is pi and that the images are not defined in x = k.pi
The range or image is R.
