Mathematics, 29.04.2021 07:30 Bailey1116680
A gumball has a radius that is 24 mm. The radius of the gumball's spherical hollow core is 20 mm. What is the volume of the gumball if you do not include its hollow core?
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Mathematics, 21.06.2019 19:50, Roshaan8039
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) = .
Answers: 3
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A gumball has a radius that is 24 mm. The radius of the gumball's spherical hollow core is 20 mm....
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