Mathematics, 13.11.2019 04:31 xman839
There are 2 mixtures of light purple paint. mixture a is made with 5 cups of purple paint and 2 cups of white paint. mixture b is made with 15 cups of purple paint and 8 cups of white paint. which mixture is a lighter shade of purple? explain your reasoning.
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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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There are 2 mixtures of light purple paint. mixture a is made with 5 cups of purple paint and 2 cups...
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