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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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