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Trigonometry Examples
Step 1
Multiply both sides by .
Step 2
Step 2.1
Simplify the left side.
Step 2.1.1
Rewrite in terms of sines and cosines, then cancel the common factors.
Step 2.1.1.1
Rewrite in terms of sines and cosines.
Step 2.1.1.2
Cancel the common factors.
Step 2.2
Simplify the right side.
Step 2.2.1
Cancel the common factor of .
Step 2.2.1.1
Cancel the common factor.
Step 2.2.1.2
Rewrite the expression.
Step 3
Since , the equation will always be true for any value of .
All real numbers
Step 4
The result can be shown in multiple forms.
All real numbers
Interval Notation: