What is arccos of cos(x)?

 

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

 

Arccos function ►

 

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