If cosh x =5/2, find the value of 1) cosh (2x) 2) sinh (2x) Share with your friends Share 1 Rishabh Mittal answered this 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... 5 View Full Answer