What is arccos of cos(x)?
Arccosine of cosine of x.
Since cosine is periodic, the arccosine of cosine of x is equal to x plus 2kπ when k is integer number k∈ℤ:
arccos( cos x ) = x+2kπ
Arccosine of cosine of x.
Since cosine is periodic, the arccosine of cosine of x is equal to x plus 2kπ when k is integer number k∈ℤ:
arccos( cos x ) = x+2kπ