Trigonometry Functions and Formulas Quiz
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Questions and Answers

What is the branch of mathematics that deals with the study of the relationship between the sides and angles of a right-angled triangle?

  • Calculus
  • Algebra
  • Geometry
  • Trigonometry (correct)

    • Who is the Greek mathematician credited with giving the concept of Trigonometry?

  • Pythagoras
  • Archimedes
  • Hipparchus (correct)
  • Euclid

    • What are some of the most commonly used trigonometric angles for calculations?

  • 15°, 75°, 105°
  • 50°, 70°, 110°
  • 45°, 60°, 90° (correct)
  • 20°, 40°, 80°

    • What can Trigonometry help to find in a right triangle using trigonometric formulas, functions or identities?

    <p>Both missing or unknown angles and sides</p> Signup and view all the answers

    In trigonometry, the angles can be measured in which units?

    <p>Radians</p> Signup and view all the answers

    Which branch of mathematics basically deals with the study of the relationship between the sides and angles of a right-angle triangle?

    <p>Trigonometry</p> Signup and view all the answers

    Which trigonometric functions are also known as the trigonometric ratios?

    <p>Sine, cosine, and tangent</p> Signup and view all the answers

    Which trigonometric functions are considered odd functions?

    <p>Sine, tangent</p> Signup and view all the answers

    What type of function is cosine?

    <p>Even function</p> Signup and view all the answers

    Which angles are commonly used in trigonometry problems?

    <p>0°, 30°, 45°, 60°, 90°</p> Signup and view all the answers

    What is the ratio for sin θ in a right-angled triangle?

    <p>Perpendicular/Hypotenuse</p> Signup and view all the answers

    When is a trigonometric function said to be an even function?

    <p>$f(-x) = f(x)$</p> Signup and view all the answers

    How are the trigonometric ratios of common angles found?

    <p>$sin^{-1}(P/H), cos^{-1}(B/H), tan^{-1}(P/B)$</p> Signup and view all the answers

    What does the concept of unit circle help measure directly?

    <p>$sin$, $cos$, and $tan$</p> Signup and view all the answers

    What are the sides opposite to the hypotenuse called in a right-angled triangle?

    <p>Opposite and adjacent sides</p> Signup and view all the answers

    What are the two different types of trigonometry mentioned in the text?

    <p>Right-angled and acute-angled trigonometry</p> Signup and view all the answers

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