Differentiate w.r.t. a
14
Evaluate
14a
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\frac{\mathrm{d}}{\mathrm{d}a}(14a)
Combine 5a and 9a to get 14a.
14a^{1-1}
The derivative of ax^{n} is nax^{n-1}.
14a^{0}
Subtract 1 from 1.
14\times 1
For any term t except 0, t^{0}=1.
14
For any term t, t\times 1=t and 1t=t.
14a
Combine 5a and 9a to get 14a.
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