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express sin(17pi/12) in terms of rational numbers and radicals. how can i do this :/

Mathematics
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@anikay think u can help me with this one?
remember what I said about pi/6?
er.....hold on, u said....pi//6 is 30 deg.

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Other answers:

ok, so, what would 12 be? then?
let me draw it reallyfast
you're going to need to know your half angle formulas for this
ugh. i forgot it :/
well, sucks, because it's gonna be a 75 degree reference angle :P
hold on im looking up the formula
cos(2a)=cos^2 - sine^2 = 2cos^2 - 1 = 1 -2 sin^2
right? @anikay
awww D: no that's double angle
okay hold on let me check again
at least, the cos(2a) is
okay i got it, sin Q = 2 sin Q/2 cos Q/2, right?
uh, here
haha im not good at math seriously ugh, this is horrible. im sorry if im wasting your time
meh tryin to hit multiple problems
haha thank you
ok so its
\[\cos ^2 \frac{ \theta }{ 2 } = \frac{ 1+\cos(\theta) }{ 2 }\]
hm...okay, do i ....just plug in the 17pi/12?
uh....im tired xD
imma go with no
imma say plug in 150
okay :/ then ill skip it
why 150?
cuz 150/2 = 75 xD or you could try 17pi/6
haha where is the 17 pi coming froM?!
isn't that your original problem?
but multiplied by 2?
IT IS!!! haha i finally saw it haha
okay i have one more problem and its my last.
yesh?
I should sleep soon.... is this a better pastime than League of Legends? xD

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