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Mathematics, 22.09.2019 11:30, tonimgreen17p6vqjq
Aplane left on time at noon on monday. it arrived at its destination at 8: 16 pm the same day, which was 16 minutes late. on average, how many seconds did the plane fall behind every fifteen minutes? 2 seconds 15 seconds 16 seconds 30 seconds 60 seconds
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Mathematics, 21.06.2019 19:50, Roshaan8039
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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Aplane left on time at noon on monday. it arrived at its destination at 8: 16 pm the same day, which...
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