Enter a problem...
Trigonometry Examples
Step 1
Set the argument in equal to to find where the expression is undefined.
, for any integer
Step 2
Step 2.1
Multiply both sides of the equation by .
Step 2.2
Simplify both sides of the equation.
Step 2.2.1
Simplify the left side.
Step 2.2.1.1
Simplify .
Step 2.2.1.1.1
Combine and .
Step 2.2.1.1.2
Cancel the common factor of .
Step 2.2.1.1.2.1
Cancel the common factor.
Step 2.2.1.1.2.2
Rewrite the expression.
Step 2.2.2
Simplify the right side.
Step 2.2.2.1
Remove parentheses.
Step 3
The domain is all values of that make the expression defined.
Set-Builder Notation:
, for any integer
Step 4