Q. Let $y=f(x)$ be a real-valued differentiable function on $R$ (the set of all real numbers) such that $f(1)=1$. If $f(x)$ satisfies $x f^{\prime}(x)=x^2+f(x)-2$ then find the area enclosed by $f(x)$ with $x$-axis between ordinates $x =0$ and $x =3$.
Application of Integrals
Solution: