- #1

synergix

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## Homework Statement

find f

^{-1}(t) and compute f

^{-1}(0) where

f(t) = sinh(t)

## Homework Equations

sinh(t)=( e

^{t}- e

^{-t})/2

## The Attempt at a Solution

t= (e

^{y}- e

^{-y})/2

ln2t = y - - y

y = (ln2t)/2

but wikipedia says

http://upload.wikimedia.org/math/8/e/d/8edd21edb4cd413e462fe82ef4ac249b.png"

what silly mistake have i made this time?

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