Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Trig functions,

  1. Sep 25, 2006 #1
    i'm thinking that trig functions are like vector constants when used as expressions.

    Like, y=cos^2x+3, or y=cosx/sinx

    I'm meaning to talk about what's meant by a trig function is just a number and how trig is used beyong right triangle problems.
  2. jcsd
  3. Oct 3, 2006 #2
    I am unsure what knowledge you request. Please explain with more detail.
  4. Oct 4, 2006 #3


    User Avatar
    Science Advisor

    No, trig functions are like scalar functions (they are scalar functions). WHY do you think they have anything to do with "vector constants" (by which I presume you mean "constant vectors")? It is true that if x is the angle a 2-dimensional vector makes with the x-axis then its components are multiples of cos x and sin x but that doesn't mean that trig functions are "like vector constants". In what sense are your examples, y= cos2x+ 3 and y= cos x/sin x, "like vector constants"?
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook