What is the value of # tanh(1)#? Trigonometry Right Triangles Trigonometric Functions of Any Angle 1 Answer A. S. Adikesavan Jun 23, 2016 0.761595, nearly Explanation: Use #sinh x = (e^x-e^(-x))/2 and cosh x =(e^x+e^(-x))/2#. #tanh 1# # = sinh 1/cosh 1# #=(e-e^(-1))/(e+e^(-1))# #=(e^2-1)/(e^2+1)# #=0.76159#, nearly. 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 21931 views around the world You can reuse this answer Creative Commons License