Trigonometry Examples

Rewrite as .
Since both terms are perfect squares, factor using the difference of squares formula, where and .
Expand using the FOIL Method.
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Apply the distributive property.
Apply the distributive property.
Apply the distributive property.
Remove parentheses.
Simplify and combine like terms.
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Simplify each term.
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Multiply by to get .
Multiply by to get .
Multiply by to get .
Simplify .
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Raise to the power of .
Raise to the power of .
Use the power rule to combine exponents.
Add and to get .
Add and to get .
Add and to get .
Apply pythagorean identity.
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