Question

Which cosine function has maximum of 0.5, a minimum of -0.5, and a period of 2(pi)/3

Answer 1

The answer is "
`\bold{y=0.5 \cos 3 \theta}`"

Explanation:

The choices were missing the question so the answer to this question can be defined as follows:

The answer is
`y= 0.5 \cos 3\theta` because:

`\Rightarrow -1 \leq \cos 3 \theta \leq 1\\\\\Rightarrow -0.5 \leq \cos 3 \theta \leq 0.5\\`

So, the maximum value is = 0.5 and the minimum value is = -0.5 of
`(2\pi)/(3)`.