Hi , I'm stuck on part b) of the attached proving cosh(x-ln2)=sinh(x) .

Substituting and simplifying seems to give me e^(x)-e^(-x) and not with the half to prove the identity .

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- Nov 25th 2012, 10:32 AMminicooper58Hyperbolic definitions
Hi , I'm stuck on part b) of the attached proving cosh(x-ln2)=sinh(x) .

Substituting and simplifying seems to give me e^(x)-e^(-x) and not with the half to prove the identity . - Nov 25th 2012, 10:59 AMPlatoRe: Hyperbolic definitions