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Homework Help: Trouble with trig. identities

  1. Jun 4, 2007 #1
    I need to prove algebraically this and I'm having trouble with it.

    cot x + tan x = sec x csc x

    Can anyone help me?
     
  2. jcsd
  3. Jun 4, 2007 #2
    What is tan x in terms of sin x and cos x? And cot x?
     
  4. Jun 4, 2007 #3
    Ahh... I see.

    cos^2 x + sin^2 x
    ------------------ = MD
    sin x cos x

    1
    ---------- = MD
    sin x cos x

    Then

    sec x csc x= sec x csc x CQFD

    I always see those problem and try to complicate things. Thanks for your help.
     
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