Complete the Identity $( \sin x + \cos x ) ^ { 2 } =$

question 149

Multiple Choice

Complete the identity.
- $( \sin x + \cos x ) ^ { 2 } =$ ?

• A) \(1 + \sin 2 x\)
• B) \(\sin 2 x\)
• C) \(1 - \cos 2 x\)
• D) \(1 + \cos 2 x\)

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