if x belongs [-5pi/12 , -pi/3] and maximum value of [tan(x+2pi/3) – tan(x+pi/6) +cos(x+pi/6)]/root 3 is a/b , then a-b is equal
if x belongs [-5pi/12 , -pi/3] and maximum value of [tan(x+2pi/3) – tan(x+pi/6) +cos(x+pi/6)]/root 3 is a/b , then a-b is equal