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I Why trigonometric ratios were defined for a unit circle

  1. Apr 27, 2016 #1

    prashant singh

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    To make it useful for any angles. I need a good explanation for this.
     
    prashant singh, Apr 27, 2016
  2. jcsd
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  3. Apr 27, 2016 #2

    jedishrfu

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    Staff: Mentor

    Think about the advantage of having a circle of radius 1. What does the sin and cos of any angle reduce to?
     
    jedishrfu, Apr 27, 2016
  4. Apr 27, 2016 #3

    prashant singh

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    Y and x okkk ,
     
    prashant singh, Apr 27, 2016
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