Complete the Identity $$\frac { \sin \alpha + \sin \beta } { \cos \alpha + \cos \beta } = ?$$

question 127

Multiple Choice

Complete the identity.
- $$\frac { \sin \alpha + \sin \beta } { \cos \alpha + \cos \beta } = ?$$

• A) \(\tan \frac { \alpha + \beta } { 2 }\)
• B) \(\tan \alpha + \tan \beta\)
• C) \(\cot \frac { \alpha - \beta } { 2 }\)
• D) \(\tan \frac { \alpha - \beta } { 2 }\)

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