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: Equation with trig

  1. Oct 28, 2005 #1
    How do you solve:

    600cosA = xcos35
    600sinA - 100 = xsin35

    The answer is supposed to be 42.9 or 90 - 42.9 for A in degrees.

    That equation might not be right though because I came up with it for Physics.
  2. jcsd
  3. Oct 28, 2005 #2


    User Avatar
    Science Advisor
    Homework Helper

    HINT: Divide one equation by the other to eliminate x.
  4. Nov 7, 2010 #3
    Solve for x in one equation then plug that into x for the other equation. Once you eliminate the x you should be left with only the variable A and you should be able to solve it.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook