SOLUTION
[tex]y=\frac{1}{2}sin3\theta[/tex]AMPLITUDE
Amplitude—distance between the resting position and the maximum displacement of the wave.
[tex]The\text{ amplitude=1/2}[/tex]PERIOD
The period of a wave is the time for a particle on a medium to make one complete.
[tex]Period=\frac{360}{3}=120\degree[/tex]POINT OF INTERSECTION WITH THE X-AXIS
[tex]-120\degree,-60\degree,0\degree,60\degree and\text{ 120}\degree[/tex]
