The function $f(x) = |\sin 4x| + |\cos 2x|$ is a periodic function with period

The period of $\sin ^4 x + \cos ^4 x$ is

The period of the function $f(x) = \frac{x}{3} - \left[ \frac{x}{3} - 5 \right] + \frac{x}{4} - \left[ \frac{x}{4} - 5 \right] + \frac{x}{5} - \left[ \frac{x}{5} - 5 \right]$ is (where $[.]$ is the $G.I.F.$).

Let $\alpha$ be the period of $3 \sin \frac{\pi x}{3} - \cos \frac{\pi x}{2} + \tan \frac{\pi x}{4}$,$\beta$ be the period of $\sin^2 \left( \frac{\pi}{7} + \frac{x}{4} \right) - \sin^2 \left( \frac{\pi}{7} - \frac{x}{4} \right)$,and $\gamma$ be the period of $\cos^4 x + \sin^4 x$. Then $\frac{\alpha \gamma}{\beta} = $

Let $f(x) = \cos px + \sin x$ be a periodic function,then $p$ must be