Here's the question you clicked on:
sara1234
Find an exact value. sin (17pi/12)
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
Idk you just wrote it for me. lol you tell me
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
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