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: Parameter equation

  1. Nov 27, 2007 #1
    1. The problem statement, all variables and given/known data

    How can I eliminate tha parameter of these equations:
    x=sec x, y=tan x

    2. Relevant equations

    3. The attempt at a solution
  2. jcsd
  3. Nov 27, 2007 #2


    User Avatar
    Science Advisor
    Homework Helper

    Square them and subtract.
  4. Nov 28, 2007 #3


    User Avatar
    Science Advisor

    You can't if there is NO parameter. I assume you meant x= sec t, y= tan t. As Dick said, square and subtract- you are using a simple trig identity.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook