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Evaluate
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Differentiate w.r.t. x
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1x-\frac{1}{a}
Divide 2 by 2 to get 1.
\frac{1xa}{a}-\frac{1}{a}
To add or subtract expressions, expand them to make their denominators the same. Multiply 1x times \frac{a}{a}.
\frac{1xa-1}{a}
Since \frac{1xa}{a} and \frac{1}{a} have the same denominator, subtract them by subtracting their numerators.
\frac{xa-1}{a}
Do the multiplications in 1xa-1.