![How do you evaluate the sine, cosine, and tangent of the angle 30 degrees without using a calculator? | Socratic How do you evaluate the sine, cosine, and tangent of the angle 30 degrees without using a calculator? | Socratic](https://useruploads.socratic.org/rjCnQLxKS2LPNZaAcUhw_131619499_orig.gif)
How do you evaluate the sine, cosine, and tangent of the angle 30 degrees without using a calculator? | Socratic
![Find the exact value of the following expression without using a calculator: cos \left ( \dfrac{5 \pi}{3} \right ). | Homework.Study.com Find the exact value of the following expression without using a calculator: cos \left ( \dfrac{5 \pi}{3} \right ). | Homework.Study.com](https://homework.study.com/cimages/multimages/16/study_unit_circle_026183497276432875781.png)
Find the exact value of the following expression without using a calculator: cos \left ( \dfrac{5 \pi}{3} \right ). | Homework.Study.com
![Find the exact value of the following expression without using a calculator: cos \left ( \dfrac{5 \pi}{3} \right ). | Homework.Study.com Find the exact value of the following expression without using a calculator: cos \left ( \dfrac{5 \pi}{3} \right ). | Homework.Study.com](https://homework.study.com/cimages/multimages/16/study_unit_circle_018095716738881501533.png)