# Find the principal solution ?

sin(x) = sqrt(3)/2 = sin(60)

x = n*pi + (-1)^n ( 60 )

x = 60 or 120

sin(120) = sin(180-60) = sin(60)

60 and 120 degree are the principal solutions.

sin(x) = sqrt(3)/2 = sin(60)

x = n*pi + (-1)^n ( 60 )

x = 60 or 120

sin(120) = sin(180-60) = sin(60)

60 and 120 degree are the principal solutions.

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