Evaluate the Following Expression $$( 1 + \sin \alpha ) ( 1 - \sin \alpha )$$

question 3

Multiple Choice

Evaluate the following expression. $$( 1 + \sin \alpha ) ( 1 - \sin \alpha )$$

• A) \(- \cos ^ { 2 } \alpha\)
• B) \(\sin ^ { 2 } \alpha\)
• C) \(\cos ^ { 2 } \alpha\)
• D) \(- 2 \sin ^ { 2 } \alpha\)
• E) \(2 \cos ^ { 2 } \alpha\)

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