How do you find the exact values of cot, csc and sec for 180 degrees? Trigonometry Right Triangles Trigonometric Functions of Any Angle 1 Answer sankarankalyanam Mar 19, 2018 #cot 180 = cot pi = 1/ tan pi = 1 / 0 = oo# #csc 180 = csc pi = 1 / sin pi = 1 / 0 = oo# #sec 180 = sec pi = 1 / cos pi = 1 / -1 = -1# Explanation: To find #cot 180, csc 180, sec 180# () #cot 180 = cot pi = 1/ tan pi = 1 / 0 = oo# #csc 180 = csc pi = 1 / sin pi = 1 / 0 = oo# #sec 180 = sec pi = 1 / cos pi = 1 / -1 = -1# 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 68690 views around the world You can reuse this answer Creative Commons License