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you can always plug it in a calculator
try using this websiite: http://www.wolframalpha.com/
Type in what you wrote and it will give you the exact value.
It will also explain some reasoning behind it.
http://www.wolframalpha.com/input/?i=sin+%2817pi%2F12%29 here i plug it in for you
the input is wrong its not written correctly
sin (17pi ) parenthesis around the whole thing ----- 12
Ok then plug that in.
Idk you just wrote it for me. lol you tell me
sin (17pi/12) = sin255
i think they want her to evaluate that expression without a calculator, and to do that you would have to refer to the calculator
i mean refer to the UNIT CIRCLE and not the calculator
Sin ( 180 + 75) = -Sin 75
Pretty sure that "exact value" means -not- to use a calculator but something like sin(a-b)=
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
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?
Sin 75 = sin(45 + 30) = sin45 cos 30 + cos45 sin30
wat no ?
can yu draw a circle and locate (17pi)/12 ? http://www.google.com/imgres?hl=en&client=firefox-a&hs=Ghp&sa=X&tbo=d&rls=org.mozilla:en-US:official&biw=1024&bih=638&tbm=isch&tbnid=-ZbhXMr4cqmhmM:&imgrefurl=http://departments.xavierhs.org/mathematics/Algebra_2/A2_Chapter_Review/Unit_Circle.htm&docid=BmSp3n0YTMKfYM&imgurl=http://departments.xavierhs.org/mathematics/Site_Graphics/Graphs_Charts/unit_circle/un_circle.gif&w=722&h=668&ei=xVaqUMmLCKr7ygH-8oGQCA&zoom=1&iact=hc&vpx=380&vpy=308&dur=3253&hovh=216&hovw=233&tx=139&ty=139&sig=112213257504048165490&page=2&tbnh=142&tbnw=154&start=18&ndsp=24&ved=1t:429,r:20,s:0,i:203
where is that located confused?
17pi / 12 to degrees is (17pi)/12 * 180/pi, which is 255 degrees, can yu locate 255 degrees?
You can't just pop up a unit circle with values. You have to explain how you get those values for those certain degrees.
fine, then explain to her
did you see thw attacment with the question
yea, i saw it