Differentiate w.r.t. z
\frac{6}{7\sqrt[7]{z}}
Evaluate
z^{\frac{6}{7}}
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\frac{6}{7}z^{\frac{6}{7}-1}
The derivative of ax^{n} is nax^{n-1}.
\frac{6}{7}z^{-\frac{1}{7}}
Subtract 1 from \frac{6}{7}.
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