Find the specific solution s of the equation tan theta Squa

Find the specific solution (s) of the equation tan theta + Squareroot 3 = 0 on the interval [0, 2 pi]. (a) 2 pi/3, 5 pi /3 (b) pi/3, 4 pi /3 (c) 5 pi/6, 11 pi/6 (d) pi/6, 7 pi /3 (e) 2 pi/3, 4 pi/3

Solution

tan theta +sqrt3=0

tan theta=-sqrt3

theta=tan^-1-sqrt3

theta=2pi/3, 5pi/3

Correct option is a.