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Mathematics, 21.06.2019 19:50
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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Mathematics, 21.06.2019 23:10
The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 β€ x β€ 6.
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Mathematics, 22.06.2019 00:20
G. how many different 6-letter arrangements can be formed using the letters in the word absent, if each letter is used only once? a. 6 b. 36 c. 720 d. 46,656
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Mathematics, 22.06.2019 01:30
What is the solution to the system of equations? y=1.5-3 y=-x
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Mathematics, 30.08.2019 09:30
Mathematics, 30.08.2019 09:30
Mathematics, 30.08.2019 09:30
Mathematics, 30.08.2019 09:30
Mathematics, 30.08.2019 09:30
Mathematics, 30.08.2019 09:30
Mathematics, 30.08.2019 09:30
History, 30.08.2019 09:30
Chemistry, 30.08.2019 09:30