Question

At which x-value does the cosine function attain a maximum value?

x = 0
x = StartFraction pi Over 2 EndFraction
x = 1
x = StartFraction 3 pi Over 2 EndFraction

Answer 1

x = 0

Explanation:

Answer 2

9514 1404 393

Answer:

x = 0

Explanation:

It can help to keep a graph of the cosine function in mind. It starts off at its maximum value at x = 0.