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Trignometry Rules/properties/common equations?

  1. Oct 27, 2009 #1
    1. The problem statement, all variables and given/known data

    What are the other Trignometry Rules/properties/common equations?



    3. The attempt at a solution

    cos2 theta + sin2 theta = 1
    1 + tan2 theta = sec2 theta
    1 + cot2 theta = csc2 theta
    2sin theta = 2cos theta sin theta
     
  2. jcsd
  3. Oct 27, 2009 #2

    Pengwuino

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    Gold Member

  4. Oct 27, 2009 #3
    Re: Trignometry

    Thanks so much...But I'm unsure of what you said about the e-mailing the site admin
     
  5. Oct 27, 2009 #4

    Pengwuino

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    Gold Member

    Re: Trignometry

    It's my signature, it's just a joke, don't mind it :)
     
  6. Oct 27, 2009 #5
    Re: Trignometry

    Lol gotcha...thanks again
     
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