How do you find the amplitude and period of #y= 4/3 sin (2/3)x#?
This question has no sense to me, the x should be INSIDE the sinusfor being a periodic function. If the x is really out the parentesis then is a tricky question. It has no period nor amplitude..
If you really wrote it correctly then
If your equation is
for the period it is
The difference between the x's will be the period, then isolating x form