## hyperbolic functions help :(

Trigonometric ratios and functions, the unit circle, inverse trig functions, identities, trig graphs, etc.
jaffa
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Joined: Sat Mar 24, 2012 10:53 am
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### hyperbolic functions help :(

using the e^x definitions for sinhx and coshx show that

sinh(x)cosh(y)+cosh(x)sinh(y)=sinh(x+y)

Any help would be very much appreciated!!!!!!
Thank You

buddy
Posts: 197
Joined: Sun Feb 22, 2009 10:05 pm
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### Re: hyperbolic functions help :(

where are you stuck?
thnx

jaffa
Posts: 3
Joined: Sat Mar 24, 2012 10:53 am
Contact:

### Re: hyperbolic functions help :(

I have just substituted in the sinhxcoshy+coshx... equation the definitions with e^x's or e^y's in. I have now two lots of brakets (....)(....)+(....)(...) all over 2.

I think this is the right first step by don't know what to do next

Thanks

jaffa
Posts: 3
Joined: Sat Mar 24, 2012 10:53 am
Contact:

### Re: hyperbolic functions help :(

Solved now Surprised no one could help me my friend said it was easy