What is cos of arccos(x)?
Arccosine of cosine of x.
Since arccosine is the inverse function of cosine, the cosine of arccosine of x is equal to x:
cos( arccos x ) = x
x has values from -1 to 1:
x∈[-1,1]
Arccosine of cosine of x.
Since arccosine is the inverse function of cosine, the cosine of arccosine of x is equal to x:
cos( arccos x ) = x
x has values from -1 to 1:
x∈[-1,1]