title: Trigonometrical ratios for angles higher than 360
body: <p>Is there any use of Sin(720)or Cos(1440) (angles in degrees)?
  Whether in computer programming or in any other situation?
  In general, is there any use of Sin/Cosine/Tan of any angle
  greater than 360?</p>
  
  <p>In Physics we do use dot products and cross products
  a lot, but even they require angles less than 180 degrees
  always.</p>
  
  <p>Hi All,
  I know how to compute them....
  I want to know, if they are ever useful????
  When will I ever encounter a situation, when
  I need to compute Sin(440) for example???</p>