<PRE><B>Question 771945</B>
solve and state the four exact solutions on the interval [0, 2 pi]: 2 sin (2 x)+ square root 3 = 0 



sin (2 x) = -sqrt(3)/2

2x = 4pi/3  or 2x = 5pi/3

x = 2pi/3   or   x = 5pi/6



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