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: How do you write equations in a single sine function?

  1. Feb 20, 2007 #1
    What would the Domain, Range, Amplitude, Period, Phase shift be for y=-3sin(x)+2cos(x)?

    How do you write it as a single sine function equivalent to it? :confused:
     
  2. jcsd
  3. Feb 20, 2007 #2

    JK423

    User Avatar
    Gold Member

    When you have a function of
    y=Asinωx+Bcosωx

    that will be equivalent to:
    y=Rcos(ωx+φ)

    where R=sqrt(A^2+B^2) and φ=tan^-1 (A/B)
     
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook