cosh2 = 2sinh^2

I did this = 2.(e^theta -e^-theta)/2 x(e^theta -e^-theta)/2

=2 x 1/4(e^2theta + e^-2 theta)

=(e^2theta +e^-2theta)/2

= cosh2

I am trying to get the hang of this Latex

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- March 18th 2009, 03:54 PMJaffaProve equation
cosh2 = 2sinh^2

I did this = 2.(e^theta -e^-theta)/2 x(e^theta -e^-theta)/2

=2 x 1/4(e^2theta + e^-2 theta)

=(e^2theta +e^-2theta)/2

= cosh2

I am trying to get the hang of this Latex - March 18th 2009, 04:08 PMJester