![Find the exact value of each expression. (a) csc^{-1} square root 2. (b) cos^{-1} ({square root 3} / 2) | Homework.Study.com Find the exact value of each expression. (a) csc^{-1} square root 2. (b) cos^{-1} ({square root 3} / 2) | Homework.Study.com](https://homework.study.com/cimages/multimages/16/trig-table2504145344077928888.png)
Find the exact value of each expression. (a) csc^{-1} square root 2. (b) cos^{-1} ({square root 3} / 2) | Homework.Study.com
![trigonometry - Easy way of memorizing values of sine, cosine, and tangent - Mathematics Stack Exchange trigonometry - Easy way of memorizing values of sine, cosine, and tangent - Mathematics Stack Exchange](https://i.stack.imgur.com/OBSn1.gif)
trigonometry - Easy way of memorizing values of sine, cosine, and tangent - Mathematics Stack Exchange
How can someone find the values of the following, in a simplified surd form without using tables or calculators: sin 135, cos 210 and tan 240? - Quora
![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)