Differentiate w.r.t. z
\frac{71}{16} = 4\frac{7}{16} = 4.4375
Evaluate
\frac{71z}{16}
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\frac{\mathrm{d}}{\mathrm{d}z}(z\times \frac{71}{16})
Multiply 4 and 4 to get 16.
\frac{71}{16}z^{1-1}
The derivative of ax^{n} is nax^{n-1}.
\frac{71}{16}z^{0}
Subtract 1 from 1.
\frac{71}{16}\times 1
For any term t except 0, t^{0}=1.
\frac{71}{16}
For any term t, t\times 1=t and 1t=t.
z\times \frac{71}{16}
Multiply 4 and 4 to get 16.
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