Question

For the following exercise,

Let $f(x)=\frac{3}{5} \cos (6 x)$.

What is the smallest possible value for $f(x)$?

Solution

VerifiedAnswered 2 years ago

Answered 2 years ago

Step 1

1 of 3Since the range of the cosine function is $[-1,1]$, it states that:

$-1\leq \cos 6x \leq 1\tag{$*$}$

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