Trigonometric Functions and Hexagon
Remember of Pythagorean Relation
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Defintion
  • Pythagorean relations
    • sin(A)^2 + cos(A)^2 = 1 : Unit circle.
    • tan(A)^2 + 1 = sec(A)^2 : Unit hyperbola.
    • cot(A)^2 + 1 = csc(A)^2 : Unit hyperbola.
  • Relation of functions
    • csc(x) = 1/sin(x).
    • sec(x) = 1/cos(x).
    • cot(x) = 1/tan(x).
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