Mathematics, 22.11.2019 00:31 eeeeee9848
Amovie is 114 minutes long marys watch 92 minutes of the movie how many minutes of the movie does she have left to watch which equation and solution below is correct
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Prove (a) cosh2(x) β sinh2(x) = 1 and (b) 1 β tanh 2(x) = sech 2(x). solution (a) cosh2(x) β sinh2(x) = ex + eβx 2 2 β 2 = e2x + 2 + eβ2x 4 β = 4 = . (b) we start with the identity proved in part (a): cosh2(x) β sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 β sinh2(x) cosh2(x) = 1 or 1 β tanh 2(x) = .
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Amovie is 114 minutes long marys watch 92 minutes of the movie how many minutes of the movie does sh...
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