Question

complete the statement.
y = cos^{-1}x means that x = ____, for 0 ≤ y ≤ π.
y = cos^{-1}x means that x = \boxed{}, for 0 ≤ y ≤ π.

Explanation:

Step1: Recall the definition of inverse cosine function

By the definition of the inverse cosine function \(y = \cos^{-1}x\) (also written as \(y=\arccos x\)), if \(y = \cos^{-1}x\) with the domain \(0\leq y\leq\pi\), then \(x=\cos y\).

Answer:

\(\cos y\)