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Evaluate
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Differentiate w.r.t. y
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\frac{4\times 2}{7}y\times 2
Express \frac{4}{7}\times 2 as a single fraction.
\frac{8}{7}y\times 2
Multiply 4 and 2 to get 8.
\frac{8\times 2}{7}y
Express \frac{8}{7}\times 2 as a single fraction.
\frac{16}{7}y
Multiply 8 and 2 to get 16.
\frac{\mathrm{d}}{\mathrm{d}y}(\frac{4\times 2}{7}y\times 2)
Express \frac{4}{7}\times 2 as a single fraction.
\frac{\mathrm{d}}{\mathrm{d}y}(\frac{8}{7}y\times 2)
Multiply 4 and 2 to get 8.
\frac{\mathrm{d}}{\mathrm{d}y}(\frac{8\times 2}{7}y)
Express \frac{8}{7}\times 2 as a single fraction.
\frac{\mathrm{d}}{\mathrm{d}y}(\frac{16}{7}y)
Multiply 8 and 2 to get 16.
\frac{16}{7}y^{1-1}
The derivative of ax^{n} is nax^{n-1}.
\frac{16}{7}y^{0}
Subtract 1 from 1.
\frac{16}{7}\times 1
For any term t except 0, t^{0}=1.
\frac{16}{7}
For any term t, t\times 1=t and 1t=t.