## Algebra 2 (1st Edition)

The Trigonometric Identities can be defined as: $\sin \theta=\dfrac{Opposite}{Hypotenuse}=\dfrac{2}{2\sqrt 17} =\dfrac{\sqrt 17}{17}$ $\cos \theta=\dfrac{Adjacent}{Hypotenuse}=\dfrac{8}{2\sqrt 17} =\dfrac{4\sqrt 17}{17}$ $\tan \theta=\dfrac{Opposite}{Adjacent}=\dfrac{2}{8}=\dfrac{1}{4}$ $\csc \theta=\dfrac{Hypotenuse}{Opposite}=\dfrac{2\sqrt 17}{2}=\sqrt 17$ $\sec \theta=\dfrac{Hypotenuse}{Adjacent}=\dfrac{2\sqrt 17}{8}=\dfrac{\sqrt 17}{4}$ $\cot \theta=\dfrac{Adjacent}{Opposite}=\dfrac{8}{2}=4$