If cosh x =5/2, find the value of 1) cosh (2x) 2) sinh (2x)

cosh x=521) cosh 2x=2 cosh2x-1=2522-1=252-1=232   ANS...2) sinh 2x=cosh22x-1 =2322-1=529-44=5252=5212   ANS...

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