Complete the Identity $$\frac { \sin 3 x + \sin 7 x } { \cos 3 x + \cos 7 x } = ?$$

question 51

Multiple Choice

Complete the identity.
- $$\frac { \sin 3 x + \sin 7 x } { \cos 3 x + \cos 7 x } = ?$$

• A) \(\tan 5 x\)
• B) \(\tan 3 x + \tan 7 x\)
• C) \(2 \tan 5 x \tan 2 x\)
• D) \(\tan 5 x \cot 2 x\)