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: Intersection of surfaces/tangent vector

  1. Oct 13, 2004 #1
    Hi, how do I find a tangent vector to the curve intersection of the surfaces [itex]2x^2+2y^2-z^2=25[/itex] and [itex]x^2+y^2=z^2[/itex] which has positive x-direction?

    Thanks in advance.
  2. jcsd
  3. Oct 14, 2004 #2


    User Avatar
    Science Advisor
    Homework Helper
    Gold Member
    Dearly Missed

    Note that your last equation implies that we may write:
    Inserting these relations into your first equation, yields:
    Can you take it from here?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook