Differentiate w.r.t. a
-3.99
Evaluate
\frac{117-399a}{100}
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\frac{\mathrm{d}}{\mathrm{d}a}(1.17-3.99a)
Combine -0.07a and -3.92a to get -3.99a.
-3.99a^{1-1}
The derivative of a polynomial is the sum of the derivatives of its terms. The derivative of a constant term is 0. The derivative of ax^{n} is nax^{n-1}.
-3.99a^{0}
Subtract 1 from 1.
-3.99
For any term t except 0, t^{0}=1.
1.17-3.99a
Combine -0.07a and -3.92a to get -3.99a.
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