Question

Solve: $\int \frac{x^2+1}{x^2+1}dx=$

• A. $1+C$
• B. $x^2+C$
• C. $x+C$
• D. $0$

Answer 1

The correct option is C $x+C$

Now,

$\int \frac{x^2+1}{x^2+1}dx$

$=\int dx$

$=x+C$ [ Where $C$ is integrating constant]