JEE MATHEMATICS MCQ: INDEFINITE INTEGRATION

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\int \frac{x^4-1}{x^2 \sqrt{x^4+x^2+1}} d x

equals

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Correct option: A

\frac{\sqrt{x^4+x^2+1}}{x}+c

Option A is correct because the integral simplifies to a form that can be solved by substitution, resulting in the given expression.

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