MCQ
$\int \frac{x^4+3 x^2+1}{x^2+3} d x=\ldots .... .+c$
- A$\frac{x^3}{3}+\tan ^{-1}\left(\frac{x}{\sqrt{3}}\right)$
- B$x^2+\frac{1}{\sqrt{3}} \tan ^{-1}\left(\frac{x}{\sqrt{3}}\right)$
- ✓$\frac{x^3}{3}+\frac{1}{\sqrt{3}} \tan ^{-1}\left(\frac{x}{\sqrt{3}}\right)$
- D$\frac{x^3}{3}+\tan ^{-1}\left(\frac{x}{3}\right)$