Question 1178160
this is 4sin^3x-sin x=0
sin x(4 sin^2x-1)=0=sin x(2 sin x+1)(2 sin x-1)
x=0 degrees
x=30 and 150 degrees
x=210 and 330 degrees; graph in radians

{{{graph(300,300,-2,6,-1,2,4sin(x)^3,sin(x))}}}