When I worked this problem, I came up with the following:(adsbygoogle = window.adsbygoogle || []).push({});

sin 11pi/12= -sq root 2/4 (sq root3-1)

cos 11pi/12= -sq root 2/4 (sq root3+1)

tan 11pi/12= 2-sq root3

am I far off?

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Sine, cosine and tangency of angle 11pi/12

**Physics Forums | Science Articles, Homework Help, Discussion**