Mathematics, 12.12.2020 16:50 izzyisawesome5232
How can you find the distance from a point to the x axis
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Prove (a) cosh2(x) тИТ sinh2(x) = 1 and (b) 1 тИТ tanh 2(x) = sech 2(x). solution (a) cosh2(x) тИТ sinh2(x) = ex + eтИТx 2 2 тИТ 2 = e2x + 2 + eтИТ2x 4 тИТ = 4 = . (b) we start with the identity proved in part (a): cosh2(x) тИТ sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 тИТ sinh2(x) cosh2(x) = 1 or 1 тИТ tanh 2(x) = .
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How can you find the distance from a point to the x axis...
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