anselmoaparici anselmoaparici
  • 18-06-2018
  • Mathematics
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using the unit circle determine the sine cosine and the tangent functions of the angle -pi/6

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Аноним Аноним
  • 18-06-2018
This angle is in the 4th segment so only the cosine is positive 

cos pi/6 = sqrt3/2  os cos -pi/6 = sqrt3/2 also

sin -pi/6 = -0.5

tan -pi/6 =  -1 / sqrt3  = - sqrt3/3
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