# What is the frequency of f(theta)= sin 6 t - cos 30 t ?

$\frac{\pi}{3}$
Frequency of sin 6t --> $\frac{2 \pi}{6} = \frac{\pi}{3}$
Frequency of cos 30t --> $\frac{2 \pi}{30} = \frac{\pi}{15}$
Find least multiple of $\left(\frac{\pi}{3}\right) \mathmr{and} \left(\frac{\pi}{15}\right)$.
Frequency of f(t) --> $\frac{\pi}{3}$