Precalculus Examples

Determine if Odd, Even, or Neither y=sec(x)
Step 1
Write as a function.
Step 2
Find .
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Step 2.1
Find by substituting for all occurrence of in .
Step 2.2
Since is an even function, rewrite as .
Step 3
A function is even if .
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Step 3.1
Check if .
Step 3.2
Since , the function is even.
The function is even
The function is even
Step 4