Question

Find the following in radians. You

Answer 1

By using the definition of the inverse cosine function, we will see that:

$cos^{-1}(0) = pi/2$

How to complete the expression?

We have the expression:

$cos^{-1}(0) = \frac{pi}{?}$

Remember that if:

$cos(x) = y\\\\cos^{-1}(y) = x$

Then, in what do we need to evaluate the cosine function to get an output equal to zero?

$cos( pi/2) = 0$

Then:

$cos^{-1}(0) = pi/2$

Then we can replace the question sign with a 2.

If you want to learn more about the cosine function, you can read:

brainly.com/question/8120556