Simplify: Trigonometry Chapter 5
\(\frac{cosx(secx-cosx)}{sinx}\)
Trig
\(\frac{cosx(secx-cosx)}{sinx}\\ =cosx(\frac{1}{cosx}-\frac{cos^2x}{cosx})\div sinx\\ =(1-cos^2x)\div sinx\\ =sin^2x\div sinx\\ =sinx\\ \)
