SOLUTION: find the exact value of sin(3pi/12) using the double-angle identities

Algebra.Com
Question 241762: find the exact value of sin(3pi/12) using the double-angle identities

Answer by jim_thompson5910(35256)   (Show Source): You can put this solution on YOUR website!
You don't need to use the double angle identities. Take note that .


So using the unit circle.

RELATED QUESTIONS

find the exact value using a double angle identity... (answered by ikleyn,greenestamps)
Find the exact value of 3pi/2 using the double angle... (answered by Alan3354)
Using the half angle identities find the exact value of sin... (answered by lwsshak3)
Find the exact value of the given expression (using half-angle or double-angle... (answered by MathLover1,MathTherapy)
find the exact value using a double angle identity... (answered by lwsshak3)
Find the exact values of sin(2u), and cos(2u), and tan(2u) using the double angle... (answered by Edwin McCravy)
Use a half-angle formula to find the exact value of sin ((3pi)/8)... (answered by lwsshak3)
Find the exact value of cos(pi) cos(3pi/4) + sin(pi) sin... (answered by jim_thompson5910,MathTherapy)
Find the exact value of sin^-1(cos... (answered by oscargut)