hyperbolic functions help :(  TOPIC_SOLVED

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hyperbolic functions help :(

Postby jaffa on Sat Mar 24, 2012 11:02 am

Please help me with my maths homework!
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
jaffa
 
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Re: hyperbolic functions help :(

Postby buddy on Sat Mar 24, 2012 12:06 pm

where are you stuck?
thnx
buddy
 
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Re: hyperbolic functions help :(

Postby jaffa on Sat Mar 24, 2012 12:12 pm

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

Re: hyperbolic functions help :(  TOPIC_SOLVED

Postby jaffa on Sat Mar 24, 2012 5:47 pm

Solved now :) Surprised no one could help me my friend said it was easy :nono:
jaffa
 
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