1. (sinx/1+sinx) - (sinx/1-sinx)
2. tanx(cotx-cosx) = ?
4. (tanx+1)(2sinx-sqrt3) = 0
5. sin2x + sinx = 0
If yall could help me that would be great, i really just kinda suck at all of this, im more of a visual learner if you get what im saying.