fsckatrudes fsckatrudes
  • 21-11-2016
  • Mathematics
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If t = -2π/3, evaluate (if possible) sin t, cos t, tan t

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HomertheGenius
HomertheGenius HomertheGenius
  • 24-11-2016
t = - 2 π / 3 = - 120° = 240°
From the unit circle:
sin t = - √ 3 / 2
cos t = - 1/2
tan t = sin t / cos t = ( - √3 / 2 ) : ( - 1/2 ) = √ 3
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