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Basic Concept of Trigonometry

    Trigonometry

    Trigonometry is branch of mathematics, which deals relationship between angles and sides of right angle triangle.


    Nomenclature of sides of right angle triangle

    Nomenclature of sides of right angle triangle is based on the referance acute angle.The name of sides of right angle triangle in trignometry are hypotenuse, perpendicular and base.Which is shown above with referenace to angle α and β.


    Relation of sides with trigonomatrical functions

  1. sine of α (sinα)= perpendicular / hypotenuse = AB/AC
  2. cosine of α (cosα)= base / hypotenuse = BC/AC
  3. tangent of α (tanα)= perpendicular / base = AB/BC
  4. cosecant of α (cosecα)= hypotenuse / perpendicular = AC/AB
  5. secant of α (secα) = hypothenuse / base = AC/BC
  6. cotangent of α (cotα)= base / perpendicular = BC/AB


    7. Question 1:
    Answer:
    Explanation:

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