## Trigonometry 7th Edition

Finding reciprocals- $\sin\theta$ = $\frac{y}{r}$ = $\frac{1}{r/y}$ = $\frac{1}{\csc\theta}$ $\cos\theta$ = $\frac{x}{r}$ = $\frac{1}{r/x}$ = $\frac{1}{\sec\theta}$ $\tan\theta$ = $\frac{y}{x}$ = $\frac{1}{x/y}$ = $\frac{1}{\cot\theta}$