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: Linear Combination of Cosine Function

  1. Oct 16, 2005 #1
    How would I express cos(wt+1) as a linear combination of cos(wt) and sin(wt)?
  2. jcsd
  3. Oct 16, 2005 #2


    User Avatar
    Science Advisor

    Basic formula: cos(x+y)=cos(x)cos(y)-sin(x)sin(y). You should be able to take it from there.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook