What is the sec^2 (pi/3)? Trigonometry Right Triangles Trigonometric Functions of Any Angle 2 Answers Alan P. Sep 7, 2015 sec^2(pi/3) = 4 Explanation: sec(pi/3) = 1/cos(pi/3) color(white)("XXXX")= 1/(1/2) = 2 sec^2(pi/3) = 2^2 = 4 Answer link Chandra S. Sep 7, 2015 sec^2 pi/3 = 1/ [cos^2pi/3 ] = 1/(1/2) ^2 = 4 Explanation: cospi/3 =1/2 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 67250 views around the world You can reuse this answer Creative Commons License