6,7 k
Differentiate w.r.t. k
6,7
Evaluate
\frac{67k}{10}
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6,7k^{1-1}
The derivative of ax^{n} is nax^{n-1}.
6,7k^{0}
Subtract 1 from 1.
6,7\times 1
For any term t except 0, t^{0}=1.
6,7
For any term t, t\times 1=t and 1t=t.
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