anonymous
  • anonymous
Using half angle formulas find the exact value of cos(x/2) given the following constraints. cos(x)=-12/13, π
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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anonymous
  • anonymous
do you know the half angle formula
anonymous
  • anonymous
No I don't...
anonymous
  • anonymous
http://upload.wikimedia.org/math/4/9/a/49a19a42dd45749f43f81d5028e5a276.png

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anonymous
  • anonymous
http://upload.wikimedia.org/math/3/f/e/3fea203908f8dabb66acad4ad3a3c37c.png
anonymous
  • anonymous
Oh wow that helps alot thank you I can figure it out from there thanks!

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