z (zarctan(yx ))=arctan(yx )
 
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z (zarctan(yx ))=arctan(yx )
  • steps
  • z (zarctan(yx ))

  • Treat y, x as constants

  • Take the constant out:    (a·f)=a·f
    =arctan(yx ) z (z)

  • Apply the common derivative:     z (z)=1
    =arctan(yx )· 1

  • Simplify
    =arctan(yx )

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