What is the amplitude, period and the phase shift of #y=- 2/3 sin πx#?
A wave function of the form
#A#is the amplitude of the wave function. It does not matter if the wave function has a negative sign, amplitude is always positive.
#\omega#is the angular frequency in radians.
#theta#is the phase shift of the wave.
All you have to do is identify these three parts and you're almost done! But before that, you need to transform your angular frequency