Differentiate w.r.t. k
-0.064
Evaluate
-\frac{8k}{125}
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\frac{\mathrm{d}}{\mathrm{d}k}(-0.064k)
Calculate -0.4 to the power of 3 and get -0.064.
-0.064k^{1-1}
The derivative of ax^{n} is nax^{n-1}.
-0.064k^{0}
Subtract 1 from 1.
-0.064
For any term t except 0, t^{0}=1.
-0.064k
Calculate -0.4 to the power of 3 and get -0.064.
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