I need help on my hw
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Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) − sinh2(x) = 1 and (b) 1 − tanh 2(x) = sech 2(x). solution (a) cosh2(x) − sinh2(x) = ex + e−x 2 2 − 2 = e2x + 2 + e−2x 4 − = 4 = . (b) we start with the identity proved in part (a): cosh2(x) − sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 − sinh2(x) cosh2(x) = 1 or 1 − tanh 2(x) = .
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Mathematics, 21.06.2019 21:50
Question 14 (1 point) larry deposits $15 a week into a savings account. his balance in his savings account grows by a constant percent rate.
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Mathematics, 21.06.2019 23:10
Aline has a slope of . which ordered pairs could be points on a parallel line? check all that apply. (-8, 8) and (2, 2) (-5, -1) and (0, 2) (-3, 6) and (6, -9) (-2, 1) and (3,-2) (0, 2) and (5,5)
Answers: 3
Mathematics, 23.08.2020 02:01
History, 23.08.2020 02:01
Mathematics, 23.08.2020 02:01
Mathematics, 23.08.2020 02:01
Mathematics, 23.08.2020 02:01
Mathematics, 23.08.2020 02:01
Advanced Placement (AP), 23.08.2020 02:01
Mathematics, 23.08.2020 02:01
Mathematics, 23.08.2020 02:01
History, 23.08.2020 02:01
Mathematics, 23.08.2020 02:01
Mathematics, 23.08.2020 02:01
Mathematics, 23.08.2020 02:01
Advanced Placement (AP), 23.08.2020 02:01
Mathematics, 23.08.2020 02:01