help get me started

[carolb4]

I have several of these problems. Can you help get me started?
Complete the identity:

sin 0 (minus) sin 0 = ?
1 + sin 0 1 - sin 0

 

[tkhunny]

Really cannot understand what you have written. Maybe this:

\(\displaystyle \frac{\sin(\theta)}{1+\sin(\theta)}-\frac{\sin(\theta)}{1-\sin(\theta)}\)

You could try finding a common denominator and adding the fractions.