![Calculation of values of trigonometric functions examples, Trigonometric reduction formulas and the reference angles Calculation of values of trigonometric functions examples, Trigonometric reduction formulas and the reference angles](http://www.nabla.hr/TrigFValuesTab.gif)
Calculation of values of trigonometric functions examples, Trigonometric reduction formulas and the reference angles
![Find the exact value of the following expression without using a calculator: tan \left ( \dfrac{2 \pi}{3} \right ). | Homework.Study.com Find the exact value of the following expression without using a calculator: tan \left ( \dfrac{2 \pi}{3} \right ). | Homework.Study.com](https://homework.study.com/cimages/multimages/16/study_unit_circle_015333153512022643729.png)
Find the exact value of the following expression without using a calculator: tan \left ( \dfrac{2 \pi}{3} \right ). | Homework.Study.com
![How to Find the Values of Trigonometric Functions Given Information About an Angle | Trigonometry | Study.com How to Find the Values of Trigonometric Functions Given Information About an Angle | Trigonometry | Study.com](https://study.com/cimages/videopreview/videopreview-full/ci1wgmor2t.jpg)