IDNLearn.com: Your reliable source for finding expert answers. Find the answers you need quickly and accurately with help from our knowledgeable and dedicated community members.

what is the exact value of tan  -13pi/6 and also the explanation

Sagot :

Unit circle! XD
Pi/6 is in the 30 degree family. What I do is multiply it by 180/pi to get it into degrees. Once you do this, the answer is -390
[tex]tan\left(-\frac{13\pi}{6}\right)=-tan\left(2\frac{1}{6}\pi\right)=-tan\left(2\pi+\frac{1}{6}\piright)=-tan\frac{1}{6}\pi=-\frac{\sqrt3}{3}[/tex]