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Homework Help: Triginometric Identities

  1. Sep 25, 2005 #1
    I have been trying to solve this question for some time but I just cannot find the right solution:

    Simplify: 4cosec^2X + (4cosec^2X)(cot^2X)
     
  2. jcsd
  3. Sep 25, 2005 #2

    Fermat

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    Take out the common factor.
     
  4. Sep 25, 2005 #3

    arildno

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    As a follow up to Fermat's suggestion, show that:
    [tex]1+cot^{2}(y)=\frac{1}{\sin^{2}y}[/tex]
     
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