- #1

blue_leaf77

Science Advisor

Homework Helper

- 2,637

- 786

$$ \int_{-\infty}^{\infty} \cos{\alpha x} dx = 0 $$

$$ \int_{-\infty}^{\infty} \sin{\alpha x} dx = 0 $$

The question is how am I supposed to prove those equations, sin and cos are stable oscillating functions.