Differentiate w.r.t. a
\frac{2}{3\sqrt[3]{a}}
Evaluate
a^{\frac{2}{3}}
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\frac{2}{3}a^{\frac{2}{3}-1}
The derivative of ax^{n} is nax^{n-1}.
\frac{2}{3}a^{-\frac{1}{3}}
Subtract 1 from \frac{2}{3}.
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