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What is the value of $tanh(1)$ ?

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.

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