Need help with trig problem

[lola]

the problem is: Find the sin, cos, and tan of 5pi/12

I was referring to the unit circle to figure out the values, but I could not get it. Please help me! Thank you.

 

[stapel]

Are you supposed to use angle-addition formulas or something...?

Thank you.

Eliz.

 

[Gene]

If so, 5pi/12=75°=45°+30°