Precalculus Examples

, ,
Step 1
Set up the composite result function.
Step 2
Evaluate by substituting in the value of into .
Step 3
Remove parentheses.
Step 4
Set the radicand in greater than or equal to to find where the expression is defined.
Step 5
Subtract from both sides of the inequality.
Step 6
The domain is all values of that make the expression defined.
Interval Notation:
Set-Builder Notation:
Step 7
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