anonymous
  • anonymous
Determine the sign of cos pi divided by three without using a calculator.
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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Astrophysics
  • Astrophysics
What do you mean?
Astrophysics
  • Astrophysics
pi/3 is in the first quadrant so it's all positive
anonymous
  • anonymous
thank you!

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anonymous
  • anonymous
Evaluate sin 60° without using a calculator by using ratios in a reference triangle. My answer so far: The sine is the ratio of the opposite leg to the hypotenuse sin a=opp leg/hypotenuse sin 60 deg=opposite/hypotenuse=square root 3/2 how can i fix/make my answer better
welshfella
  • welshfella
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welshfella
  • welshfella
cosine = adjacent / hypotenuse

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