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#1 2018-02-18 12:19:02

Hannibal lecter
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Registered: 2016-02-11
Posts: 225
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who have the prove of tanh(x+y)?

Hi,

prove :-

tanh(x + y) = (tanh x + tanh y)/(1 + tanh x + tanh y)


Wisdom is a tree which grows in the heart and fruits on the tongue

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#2 2018-02-18 21:29:40

bob bundy
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Registered: 2010-06-20
Posts: 8,422

Re: who have the prove of tanh(x+y)?

Hi

Do you have formulas for sinh(x + y) and cosh(x+y) ?

If yes, use tanh = sinh / cosh

Or go back to definitions in terms of "e"

Bob


Children are not defined by school ...........The Fonz
You cannot teach a man anything;  you can only help him find it within himself..........Galileo Galilei
Sometimes I deliberately make mistakes, just to test you!  smile

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