Differentiate w.r.t. f
4
Evaluate
4f
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\frac{\mathrm{d}}{\mathrm{d}f}(4f)
Combine f\times 7 and -f\times 3 to get 4f.
4f^{1-1}
The derivative of ax^{n} is nax^{n-1}.
4f^{0}
Subtract 1 from 1.
4\times 1
For any term t except 0, t^{0}=1.
4
For any term t, t\times 1=t and 1t=t.
4f
Combine f\times 7 and -f\times 3 to get 4f.
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Simultaneous equation
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Limits
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