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#1 2007-11-03 05:16:08

EPhillips1989
Member
Registered: 2007-11-03
Posts: 29

exponentials

hey does anyone know how i can solve these exponentials

2cosh^2(x)=1+cosh(2x)

2sinhxcoshx=sinh(2x)

please help!!!

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#2 2007-11-03 07:10:22

JaneFairfax
Member
Registered: 2007-02-23
Posts: 6,868

Re: exponentials

They are not equations; they are identities. To prove them, use the definitions of cosh and sinh.

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