MCQ
$\int \frac{d x}{x^2+16}=$
- A$\frac{1}{16} \tan ^{-1} \frac{x}{16}+k$
- ✓$\frac{1}{4} \tan ^{-1} \frac{x}{4}+k$
- C$\frac{1}{4} \tan ^{-1} \frac{4}{x}+k$
- D$\frac{1}{4} \tan ^{-1} \frac{16}{x^2}+k$
Generate a complete, print-ready paper with questions like this in minutes — across 16+ boards, with answer keys.