Differentiate w.r.t. x_16
-15
Evaluate
-15x_{16}
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-15x_{16}^{1-1}
The derivative of ax^{n} is nax^{n-1}.
-15x_{16}^{0}
Subtract 1 from 1.
-15
For any term t except 0, t^{0}=1.
Examples
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