prove it equals 1
(Tanx - Cotx) + Sinx.Cosx
![prove it equals 1 Tanx Cotx SinxCosx class=](https://us-static.z-dn.net/files/dcf/e3ec1688e0056fe315e4a0347307b929.png)
Step-by-step explanation:
(sinx/cosx - cosx/sinx) + sinxcosx
sin²x - cos²x = 1
I can't prove
I only know sin²x + cos²x = 1 : )