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Trigonometry Examples
Step 1
Step 1.1
Simplify .
Step 1.1.1
Rewrite in terms of sines and cosines.
Step 1.1.2
Combine and .
Step 1.1.3
Rewrite in terms of sines and cosines.
Step 1.1.4
Cancel the common factor of .
Step 1.1.4.1
Cancel the common factor.
Step 1.1.4.2
Rewrite the expression.
Step 1.1.5
Cancel the common factor of .
Step 1.1.5.1
Cancel the common factor.
Step 1.1.5.2
Rewrite the expression.
Step 2
Since , the equation will always be true for any value of .
All real numbers
Step 3
The result can be shown in multiple forms.
All real numbers
Interval Notation: