Differentiate w.r.t. d
\frac{4}{5\sqrt[5]{d}}
Evaluate
d^{\frac{4}{5}}
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\frac{4}{5}d^{\frac{4}{5}-1}
The derivative of ax^{n} is nax^{n-1}.
\frac{4}{5}d^{-\frac{1}{5}}
Subtract 1 from \frac{4}{5}.
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