Algebra Examples

Find the Domain and Range y=sec(x)
Step 1
Set the argument in equal to to find where the expression is undefined.
, for any integer
Step 2
The domain is all values of that make the expression defined.
Set-Builder Notation:
, for any integer
Step 3
The range is the set of all valid values. Use the graph to find the range.
Interval Notation:
Set-Builder Notation:
Step 4
Determine the domain and range.
Domain: , for any integer
Range:
Step 5