Evaluate
\frac{j^{3}}{16\left(n+1\right)}
Differentiate w.r.t. n
-\frac{j^{3}}{16\left(n+1\right)^{2}}
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\frac{1}{16\left(n+1\right)}j^{3}
Multiply \frac{1}{16} times \frac{1}{n+1} by multiplying numerator times numerator and denominator times denominator.
\frac{j^{3}}{16\left(n+1\right)}
Express \frac{1}{16\left(n+1\right)}j^{3} as a single fraction.
\frac{j^{3}}{16n+16}
Use the distributive property to multiply 16 by n+1.
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