How do I find the value of sec(3pi/4)? Trigonometry Right Triangles Trigonometric Functions of Any Angle 1 Answer टासी श. · Roella W. Oct 17, 2015 #=1/cos((3pi)/4)# #=1/cos(pi - pi/4)# // for first quadrant, all +ve #=1/(sin (pi/4))# #=1/(1/sqrt2)# #=sqrt2 # 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 30672 views around the world You can reuse this answer Creative Commons License
