Question

sinh(x+y)=sinhxcoshy+coshysinhy can some help me prove this
@Mathematics

Answer 1

its a little tricky, you have to add in clever forms of zero to be able to factor it properly. Its easier to see if you start with the right hand side

Answer 2

haha yeah these can be difficult however it'd be much easier to start with the right side and work your way to sinh(x+y)

Answer 3

indeed, thats basically how i came up with what i wrote. Worked with the right side, but didnt cancel anything out to see what i needed to add back in if i had started from the left.

Answer 4

Hey joe check out my latest question when you can

Answer 5

im very weak at Calc III unfortunately =/ otherwise I would jump at the chance to help out. sry >.<

Answer 6

thanks a lot a guys this helped out a lot i had no idea how to start this problem

Answer 7

how did u come up with the 1/4

Answer 8

if you guys can explain how you got this it would be awesome