Why trigonometric ratios were defined for a unit circle

  • #1
To make it useful for any angles. I need a good explanation for this.
 

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  • #2
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Think about the advantage of having a circle of radius 1. What does the sin and cos of any angle reduce to?
 
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Likes theBin and prashant singh
  • #3
Y and x okkk ,
 

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