alleryStart learning →When the numerator is the derivative of the denominator, as in 2x/(x^2 + 1), the antiderivative is
Atan^-1 x + C
B2 ln x + C
C(x^2 + 1)^2 + C
Dln(x^2 + 1) + C
Answer & Solution
Correct answer: D. ln(x^2 + 1) + C
The numerator is the derivative of the denominator, so the antiderivative is the log of the denominator.
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