can someone offer advise with this one please? prove: cosh 2theta=2sinh^2 theta + 1 can anyone advise how to resolve this one honestly dont know where to start with it. thankyou any pointers appreciated.
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Originally Posted by ads114 can someone offer advise with this one please? prove: cosh 2theta=2sinh^2 theta + 1 can anyone advise how to resolve this one honestly dont know where to start with it. thankyou any pointers appreciated.
Or, directly from the definition, since , so and then .
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