ddx (cos(x))=sin(x)2x 
 
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ddx (cos(x))=sin(x)2x 
  • steps
  • ddx (cos(x))

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    Apply the chain rule:    sin(x)ddx (x)
    =sin(x)ddx (x)

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    ddx (x)=12x 
    =sin(x)12x 

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    Simplify sin(x)12x :    sin(x)2x 
    =sin(x)2x 

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