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sara1234

  • 3 years ago

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

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  1. RyanL.
    • 3 years ago
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    you can always plug it in a calculator

  2. sara1234
    • 3 years ago
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    idk how

  3. RyanL.
    • 3 years ago
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    try using this websiite: http://www.wolframalpha.com/

  4. RyanL.
    • 3 years ago
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    Type in what you wrote and it will give you the exact value.

  5. RyanL.
    • 3 years ago
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    It will also explain some reasoning behind it.

  6. RyanL.
    • 3 years ago
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    http://www.wolframalpha.com/input/?i=sin+%2817pi%2F12%29 here i plug it in for you

  7. sara1234
    • 3 years ago
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    the input is wrong its not written correctly

  8. sara1234
    • 3 years ago
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    sin (17pi ) parenthesis around the whole thing ----- 12

  9. RyanL.
    • 3 years ago
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    Ok then plug that in.

  10. sara1234
    • 3 years ago
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    how?

  11. RyanL.
    • 3 years ago
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    Idk you just wrote it for me. lol you tell me

  12. Yahoo!
    • 3 years ago
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    sin (17pi/12) = sin255

  13. mickey4691
    • 3 years ago
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    i think they want her to evaluate that expression without a calculator, and to do that you would have to refer to the calculator

  14. mickey4691
    • 3 years ago
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    i mean refer to the UNIT CIRCLE and not the calculator

  15. Yahoo!
    • 3 years ago
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    Sin ( 180 + 75) = -Sin 75

  16. freewilly922
    • 3 years ago
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    Pretty sure that "exact value" means -not- to use a calculator but something like sin(a-b)=

  17. sara1234
    • 3 years ago
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    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

  18. freewilly922
    • 3 years ago
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    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?

  19. Yahoo!
    • 3 years ago
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    Sin 75 = sin(45 + 30) = sin45 cos 30 + cos45 sin30

  20. sara1234
    • 3 years ago
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    no

  21. Yahoo!
    • 3 years ago
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    wat no ?

  22. sara1234
    • 3 years ago
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    where is that located confused?

  23. mickey4691
    • 3 years ago
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    17pi / 12 to degrees is (17pi)/12 * 180/pi, which is 255 degrees, can yu locate 255 degrees?

  24. RyanL.
    • 3 years ago
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    You can't just pop up a unit circle with values. You have to explain how you get those values for those certain degrees.

  25. mickey4691
    • 3 years ago
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    fine, then explain to her

  26. sara1234
    • 3 years ago
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    did you see thw attacment with the question

  27. mickey4691
    • 3 years ago
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    yea, i saw it

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