ddx (tan2(x))=sec2(x)tan(x)x 
 
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ddx (tan2(x))=sec2(x)tan(x)x 
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  • ddx (tan2(x))

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    Apply the chain rule:    2tan(x)ddx (tan(x))
    =2tan(x)ddx (tan(x))

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    ddx (tan(x))=sec2(x)2x 
    =2tan(x)sec2(x)2x 

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    Simplify 2tan(x)sec2(x)2x :    sec2(x)tan(x)x 
    =sec2(x)tan(x)x 

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