List all values of
x
where
f
(
x
)
x
4
108
x
21
has critical points.
Enter one exact, simplified answer in each box. You can add or remove boxes. If
f
has no critical points, remove all boxes.
c
𝜋
ln
c
ref_doc_title.

Confetti

Jumping to level 1 of 1

Excellent!

Now entering the Challenge Zone—are you ready?

Teacher tools