Differentiate w.r.t. a
12
Evaluate
12a+11
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\frac{\mathrm{d}}{\mathrm{d}a}(12a+11)
Combine 5a and 7a to get 12a.
12a^{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}.
12a^{0}
Subtract 1 from 1.
12\times 1
For any term t except 0, t^{0}=1.
12
For any term t, t\times 1=t and 1t=t.
12a+11
Combine 5a and 7a to get 12a.
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