Differentiate w.r.t. B
3768B^{2}
Evaluate
1256B^{3}
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\frac{\mathrm{d}}{\mathrm{d}B}(1256B^{3})
Multiply 4 and 314 to get 1256.
3\times 1256B^{3-1}
The derivative of ax^{n} is nax^{n-1}.
3768B^{3-1}
Multiply 3 times 1256.
3768B^{2}
Subtract 1 from 3.
1256B^{3}
Multiply 4 and 314 to get 1256.
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