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

4 posts
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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

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

where are you stuck?

thnx

thnx

- buddy
**Posts:**141**Joined:**Sun Feb 22, 2009 10:05 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

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

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

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

4 posts
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