Differentiate w.r.t. v
\frac{5}{8v^{\frac{3}{8}}}
Evaluate
v^{\frac{5}{8}}
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\frac{5}{8}v^{\frac{5}{8}-1}
The derivative of ax^{n} is nax^{n-1}.
\frac{5}{8}v^{-\frac{3}{8}}
Subtract 1 from \frac{5}{8}.
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