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: A little rusty

  1. Mar 6, 2006 #1
    Could someone remind me the proper way to solve this equation. I cannot recall how.

    9.8 * Sin (theta) = 7.056 * Cos (theta)

    Plugging number in and working backwads I got the answer theta=36 which is correct as far as I can tell.
     
  2. jcsd
  3. Mar 6, 2006 #2
    7.056/9.8 = tan (theta)
    theta = inverse tangent of (7.056/9.8)
     
  4. Mar 7, 2006 #3

    VietDao29

    User Avatar
    Homework Helper

    We don't give COMPLETE SOLUTION here, in Physics Forums. :grumpy: :grumpy: :grumpy: :grumpy:
    However, that's not completely correct, yet. One should also note that:
    [tex]\tan x = \tan (x + \pi)[/tex] tangent function is periodic with period [tex]\pi[/tex].
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook