Explain why the following inequality is true
$$0\le \int_1^\infty \frac{\sin^2(x)}{\sqrt{x^3+x}} dx \le 2$$
Any help will be greatly appreciated!
Explain why the following inequality is true
$$0\le \int_1^\infty \frac{\sin^2(x)}{\sqrt{x^3+x}} dx \le 2$$
Any help will be greatly appreciated!