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!

Homework Help: Secant, tangent

  1. Jan 25, 2012 #1
    1. The problem statement, all variables and given/known data

    Screenshot2012-01-25at35053AM.png

    2. Relevant equations



    3. The attempt at a solution

    I don't see how they get from step one to two. I would think both secants would cancel since one is positive and the other is negative but that doesn't happen. i think i understand the manipulations of the tangents but not entirely
     
  2. jcsd
  3. Jan 25, 2012 #2
    its simple. just expand the numerator and then take sec x common
     
  4. Jan 25, 2012 #3
    ok, I get it

    ab - ac = a(b-c)
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook




Loading...
Similar Threads for Secant tangent
Graphing sinusoidal tangent functions