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anonymous
 one year ago
Please help
Find an exact value.
sine of negative eleven pi divided by twelve.
anonymous
 one year ago
Please help Find an exact value. sine of negative eleven pi divided by twelve.

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anonymous
 one year ago
Best ResponseYou've already chosen the best response.0So it's sin (11pi/12)

anonymous
 one year ago
Best ResponseYou've already chosen the best response.011pi/12 is half of 11pi/6 so you can use a half angle formula. \[\sin \frac{ \theta }{ 2 }=\pm \sqrt{\frac{ 1\cos \theta }{ 2 }}\] where Θ=pi/6 and you choose + or  based on the quadrant

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0@peachpi My options are quantity square root of six plus square root of two divided by four. quantity negative square root of six minus square root of two divided by four. quantity square root of two minus square root of six divided by four. quantity square root of six minus square root of two divided by four.

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0I wouldn't know which one of those it is because I didn't solve the problem. All you have to do is plug in 11pi/6.
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