Differentiate w.r.t. x_11
57
Evaluate
57x_{11}
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\frac{\mathrm{d}}{\mathrm{d}x_{11}}(57x_{11})
Multiply 3 and 19 to get 57.
57x_{11}^{1-1}
The derivative of ax^{n} is nax^{n-1}.
57x_{11}^{0}
Subtract 1 from 1.
57\times 1
For any term t except 0, t^{0}=1.
57
For any term t, t\times 1=t and 1t=t.
57x_{11}
Multiply 3 and 19 to get 57.
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