Differentiate w.r.t. r
-0.65
Evaluate
-\frac{13r}{20}+10
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\frac{\mathrm{d}}{\mathrm{d}r}(10-0.65r)
Add 7 and 3 to get 10.
-0.65r^{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}.
-0.65r^{0}
Subtract 1 from 1.
-0.65
For any term t except 0, t^{0}=1.
10-0.65r
Add 7 and 3 to get 10.
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Limits
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