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Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) ā sinh2(x) = 1 and (b) 1 ā tanh 2(x) = sech 2(x). solution (a) cosh2(x) ā sinh2(x) = ex + eāx 2 2 ā 2 = e2x + 2 + eā2x 4 ā = 4 = . (b) we start with the identity proved in part (a): cosh2(x) ā sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 ā sinh2(x) cosh2(x) = 1 or 1 ā tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 23:30
Consider the first four terms of the sequence below. what is the 8th term of this sequence?
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Mathematics, 22.06.2019 01:00
Azul has 4 green picks and no orange picks.you add orange picks so that there are 2 orange picks for every 1 green pick.how many picks are there now.
Answers: 2
Mathematics, 22.06.2019 01:30
Simplify the rational expression. state any restrictions on the variable. t^2-4t-12 / t-8 the / is a fraction sign.
Answers: 1
Social Studies, 03.12.2019 19:31
Chemistry, 03.12.2019 19:31
Chemistry, 03.12.2019 19:31
Mathematics, 03.12.2019 19:31
Biology, 03.12.2019 19:31
Mathematics, 03.12.2019 19:31
Mathematics, 03.12.2019 19:31
Mathematics, 03.12.2019 19:31
Mathematics, 03.12.2019 19:31