For a periodic signal v(t) = 30 sin 100 t + 10 cos 300

For a periodic signal v(t) = 30 sin 100 t + 10 cos 300 t + 6 sin (500 t + π/4), the fundamental frequency in rad/s is

LCM of T₁, T₂, T₃ will be: =	LCM of numerator	=	2π
	HCF of denominator.		100

∴ Overall time period =	2π	sec.
	100

Harmonic frequency = 100 rad/sec.