Question

If \(cosh x =\frac{25}{7}\) and x > 0, find the values of the other hyperbolic functions at x.

Answer 1

@zepdrix

Answer 2

i think is -4/3

Answer 3

How did you come up with that?

Answer 4

Using the equation cosh^2 - sinh^2 = 1, we easily see that

sinh x = +/- sqrt( cosh^2x - 1 ) = +/- sqrt( 25/9 - 1) = +/- 4/3 im i right

Answer 5

im right?????