which of the following is the correct ratio tan (7π/6)? pick the correct answer

tan(7π/6) = -√3/2/-1/2 = √3

tan(7π/6) = -1/2/√3/2 = -√3/3

tan(7π/6) = -1/2/-√3/2 = √3/3

tan(7π/6) = 1/2/√3/2 = √3/3

The correct answer is:

tan(7π/6) = -√3/3