Question 79
Solve the equation:
$$
\cos \pi x = \left[ \frac{x}{2} - \left[ \frac{x}{2} \right] - \frac{1}{2} \right].
$$
Here $[a]$ stands for the greatest integer number that does not exceed $a$.
$$
\cos \pi x = \left[ \frac{x}{2} - \left[ \frac{x}{2} \right] - \frac{1}{2} \right].
$$
Here $[a]$ stands for the greatest integer number that does not exceed $a$.