Find an exact value. sin (17pi/12)

Question

Find an exact value.  sin (17pi/12)

anonymous · Answer

you can always plug it in a calculator

anonymous · Answer

idk how

anonymous · Answer

anonymous · Answer

Type in what you wrote and it will give you the exact value.

anonymous · Answer

It will also explain some reasoning behind it.

anonymous · Answer

anonymous · Answer

the input is wrong its not written correctly

anonymous · Answer

sin (17pi )   parenthesis around the whole thing 
      -----
         12

anonymous · Answer

Ok then plug that in.

anonymous · Answer

how?

anonymous · Answer

Idk you just wrote it for me. lol you tell me

anonymous · Answer

sin (17pi/12) = sin255

anonymous · Answer

i think they want her to evaluate that expression without a calculator, and to do that you would have to refer to the calculator

anonymous · Answer

i mean refer to the UNIT CIRCLE and not the calculator

anonymous · Answer

Sin ( 180 + 75) = -Sin 75

anonymous · Answer

Pretty sure that "exact value" means -not- to use a calculator but something like 
sin(a-b)=

anonymous · Answer

http://www.wolframalpha.com/input/?i=sin+%2817pi+over+12%29 it didnt give me what i was looking for the answer choices have sqr.6 and sqr.2/4 with differnt signs as answers

anonymous · Answer

do you know what the sin and cosine of 1pi, 1/2 pi and 1/6 pi?
also known as 180 degrees, 90 degrees and 30 degrees?

anonymous · Answer

Sin 75 = sin(45 + 30)  = sin45 cos 30 + cos45 sin30

anonymous · Answer

no

anonymous · Answer

wat no ?

anonymous · Answer

anonymous · Answer

where is that located confused?

anonymous · Answer

17pi / 12 to degrees is (17pi)/12 * 180/pi, which is 255 degrees, can yu locate 255 degrees?

anonymous · Answer

You can't just pop up a unit circle with values. You have to explain how you get those values for those certain degrees.

anonymous · Answer

fine, then explain to her

anonymous · Answer

did you see thw attacment with the question

anonymous · Answer

yea, i saw it