1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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

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


    sec x csc x= sec x csc x CQFD

    I always see those problem and try to complicate things. Thanks for your help.
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Trouble with trig. identities
  1. Trig Identities (Replies: 18)

  2. Trig Identity (Replies: 1)

  3. Trig Identities (Replies: 6)

  4. Trig Identities (Replies: 8)