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Trigonometric Equations

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Topics

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  • Properties of Δ
  • Sine formula: `a/sinA=b/sinB=c/sinC`
  • Cosine formula:`cosA=(b^2+c^2-a^2)/(2bc)`, etc
  • Area of triangle:Δ = `1/2`bc A etc
  • Simple applications of the above
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