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Trigonometry Examples
Step 1
Step 1.1
Simplify the numerator.
Step 1.1.1
Rewrite as .
Step 1.1.2
Since both terms are perfect squares, factor using the difference of squares formula, where and .
Step 1.2
Cancel the common factor of and .
Step 1.2.1
Reorder terms.
Step 1.2.2
Cancel the common factor.
Step 1.2.3
Divide by .
Step 2
Step 2.1
Subtract from .
Step 2.2
Subtract from .