Definition of Arccosine
Arccosine is the inverse function of cosine. It is also written as arccos or cos-1.
If y = cos x, then x = arccos y.
Examples of Arccosine
This means that the angle 300 has cosine equal to .
Video Examples: Arccos Tnverse Trig Function
Solved Example Clockple on Approximate
Correct Answer: D
Step 1: Recall that cos(arccos x) = x, for - 1 ≤ x ≤ 1.