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Trig Value Chart by 15°

Trig Value Chart by 15°
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2015-11-28 21:35
CircleAngleFunctionTrigonometryGeometric Construction
This example demonstrates trigonometric function values at key angles like 15°, emphasizing important Unit Circle values. Core math concepts include trigonometric functions, Unit Circle, trigonometric identities, and reciprocal functions. Construction highlights the use of GeoGebra commands like If, TableText, and Intersect, along with objects such as α, texSin. Suitable for high school students learning trigonometry and unit circles, or for educational purposes.

GeoGebra Commands & Parameters

  1. If(Defined[cot(α)], texCot, "cot(" + α + ") is undefined.") → texCot0
  2. If(Defined[csc(α)], texCsc, "csc(" + α + ") is undefined.") → texCsc0
  3. If(Defined[tan(α)], texTan, "tan(" + α + ") is undefined.") → texTan0
  4. If(Defined[sec(α)], texSec, "sec(" + α + ") is undefined.") → texSec0
  5. TableText({{" Trigonometric Values ", texSin, texCos, texTan0, texCot0, texSec0, texCsc0}}, "|_v") → text1
  6. Intersect(sine, a, (130.13722126929676, 0.7645027951227927)) → A
  7. Intersect(cosine, a, (130.13722126929676, -0.644620412529294)) → B
  8. Intersect(tangent, a, (130.13722126929676, -1.1859736059600048)) → C
  9. Intersect(secant, a, (130.13722126929676, -1.5513005492275753)) → E
  10. Intersect(cosecant, a, (130.13722126929676, 1.3080396911294252)) → F
  11. Intersect(cotangent, a, (130.13722126929676, -0.8431890853005405)) → D