1. Not finding help here? Sign up for a free 30min 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!

Trig. :s

  1. Mar 16, 2009 #1
    1. The problem statement, all variables and given/known data
    Find the values of (theta),in the interval 0degree[tex]\leq(theta)[/tex][tex]\leq180[/tex],for which cos2theta=1/4.Give your answers correct to the nearest integers.

    2. Relevant equations
    :s


    3. The attempt at a solution
    do i just tap them in the calculator or how?
     
  2. jcsd
  3. Mar 16, 2009 #2

    Dick

    User Avatar
    Science Advisor
    Homework Helper

    I would start by sketching a graph of the function first. You should be able to see that there are two possible values of theta. Then sure, use your calculator to find them.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Trig. :s
  1. Stuck :s (Replies: 6)

  2. A limit :s (Replies: 5)

  3. Transformations? :S (Replies: 2)

Loading...