9000033807

SubArea:

Level:

Project ID:

9000033807

Source Problem:

Accepted:

Clonable:

Easy:

In the following list identify a true statement about the function

f (x) = \cos x

on the interval

I = (- \frac{π}{2}; \frac{π}{2})

The function

f

has a unique maximum and no minimum on

I

The function

f

does not have a minimum or maximum on

I

The function

f

has a unique maximum and a unique minimum on

I

The function

f

has a unique minimum and no maximum on

I

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