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Ratio help

  1. Nov 14, 2007 #1
    i have my maths exam tm
    arghhhh...
    and im not sure how to do these questions
    on basic trigonometry
    could anyone please help me
    the first questions are
    a) cotan 45degrees
    b) sec 30 degress
    c) coseeent 30 degrees
     
  2. jcsd
  3. Nov 14, 2007 #2

    Gib Z

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    Homework Helper

    Draw some triangles!! For a), draw a right angled isosceles triangle with the equal sides of length 1 unit. What are the other angles, what is the ratio of the adjacent to the opposite sides?

    For b) and c), draw an equilateral triangle with each side of length 2 units. Bisect it. What are the smallest angles, what are the ratios?
     
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