Differentiate w.r.t. x
-\frac{12}{x^{13}}
Evaluate
\frac{1}{x^{12}}
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\frac{\mathrm{d}}{\mathrm{d}x}(x^{-12})
Subtract 16 from 4 to get -12.
-12x^{-12-1}
The derivative of ax^{n} is nax^{n-1}.
-12x^{-13}
Subtract 1 from -12.
x^{-12}
Subtract 16 from 4 to get -12.
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