- Three values of
when
are
and 
- The value of
is -1.414
<h3>Three possible angles θ on the domain [0,∞)</h3>
The cosine ratio is given as:

See attachment for the graph of
under the domain of [0,∞)
From the graph, we can see that some values of
when
are:
and 
<h3>The value of sec θ</h3>
We have:
θ = 495°
Convert to radians

Evaluate

<h3 />
The value of sec θ is then calculated as:

Using a calculator, we have:

Hence, the value of
is -1.414
Read more about trigonometry ratios at:
brainly.com/question/27223704
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