ddx (ln(x21))=2xx21 
 
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ddx (ln(x21))=2xx21 
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  • ddx (ln(x21))

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    Apply the chain rule:    1x21 ddx (x21)
    =1x21 ddx (x21)

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    ddx (x21)=2x
    =1x21 · 2x

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    Simplify 1x21 · 2x:    2xx21 
    =2xx21 

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