SOLUTION: please help me solve this problem! find the solutions for each equation on [0, 2pi) sin2x + sinx = 0

      sin(2x) + sin(x) = 0

2sin(x)cos(x) + sin(x) = 0

     sin(x)[2cos(x)+1] = 0

  sin(x)=0;   2cos(x)+1 = 0
  x=0; ;   2cos(x) = -1
                 cos(x) = 
                      x = , 

Edwin