Mathematics, 18.07.2019 20:30, Chavens520
Anumber is equal to the sum of half a second number and 3. the first number is also equal to the sum of one-quarter of the seconds number and 5 what which equation can show this x represent the second number
Answers: 1
Mathematics, 21.06.2019 19:50, Roshaan8039
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) = .
Answers: 3
Anumber is equal to the sum of half a second number and 3. the first number is also equal to the sum...
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