Question 544040
solve the equation, give all answers within (0, 2pi) 
csc(x/3)- 2 = 0
csc(x/3) = 2 
sin(x/3)=1/2
x/3=π/6 and 5π/6 (in quadrants I and II where sin>0)
x=π/2 and 5π/2