How do you find the value of tan 150? Trigonometry Right Triangles Trigonometric Functions of Any Angle 1 Answer टासी श. · mimi Oct 17, 2015 1/-sqrt3 Explanation: tan(150)= tan(180-30) or tan(150)=tan(180+(-30)) tan(150)=(tan(180)+tan(-30))/(1-tan(180.tan(-30))) tan(150)=(0+ sin(-30)/cos(-30))/(1-0) tan(150)=(1/2)/(-sqrt3/2) tan(150)=(1/2)* (2/-sqrt3) tan(150)=1/-sqrt3 Answer link Related questions How do you find the trigonometric functions of any angle? What is the reference angle? How do you use the ordered pairs on a unit circle to evaluate a trigonometric function of any angle? What is the reference angle for 140^\circ? How do you find the value of cot 300^@? What is the value of sin -45^@? How do you find the trigonometric functions of values that are greater than 360^@? How do you use the reference angles to find sin210cos330-tan 135? How do you know if sin 30 = sin 150? How do you show that (costheta)(sectheta) = 1 if theta=pi/4? See all questions in Trigonometric Functions of Any Angle Impact of this question 75951 views around the world You can reuse this answer Creative Commons License