Differentiate w.r.t. c
\frac{3}{7c^{\frac{4}{7}}}
Evaluate
c^{\frac{3}{7}}
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\frac{3}{7}c^{\frac{3}{7}-1}
The derivative of ax^{n} is nax^{n-1}.
\frac{3}{7}c^{-\frac{4}{7}}
Subtract 1 from \frac{3}{7}.
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