Differentiate w.r.t. x
998
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998x
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\frac{\mathrm{d}}{\mathrm{d}x}(998x)
Combine 1000x and -2x to get 998x.
998x^{1-1}
The derivative of ax^{n} is nax^{n-1}.
998x^{0}
Subtract 1 from 1.
998\times 1
For any term t except 0, t^{0}=1.
998
For any term t, t\times 1=t and 1t=t.
998x
Combine 1000x and -2x to get 998x.
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