Hyperbolic functions

Question

Below is a value of hyperbolic sine x. Use the definitions for hyperbolic functions and the identity hyperbolic cosine squared x - hyperbolic sine squared x = 1 (cosh^2 x - sinh^2 x = 1) to find the values of the remaining five hyperbolic functions.

sinh x = 20/21

what's cosh x, tanh x, coth x, sech x, and csch x

Answer 1

The relationships between the hyperbolic functions are the same as the relationships between the trigonometric functions.