Question

PLATO !!!! Which restricted domain would allow you to define the inverse cosine function?

Answer 1

(0,π)

Explanation:

i took the test it's correct

Answer 2

0 ≤ x ≤ π

Explanation:

In order to define the inverse cosine functions, the domains of the cosine functions are restricted.

One major condition to define an inverse of a function is that the original function must be one‐to‐one which means that one value from the domain should correspond to only one value in the range.

So we have a restriction that is placed on the values of the domain of the cosine function which is the following:

0 ≤ x ≤ π