Guys please I really need help this will be the last time I ask for help
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Mathematics, 22.02.2021 20:40, Teenabrewer28
Guys please I really need help this will be the last time I ask for help
![answer](/tpl/images/cats/otvet.png)
Answers: 3
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Mathematics, 21.06.2019 19:50, Roshaan8039
Prove (a) cosh2(x) ā sinh2(x) = 1 and (b) 1 ā tanh 2(x) = sech 2(x). solution (a) cosh2(x) ā sinh2(x) = ex + eāx 2 2 ā 2 = e2x + 2 + eā2x 4 ā = 4 = . (b) we start with the identity proved in part (a): cosh2(x) ā sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 ā sinh2(x) cosh2(x) = 1 or 1 ā tanh 2(x) = .
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Mathematics, 21.06.2019 23:20, braddypeter61
Interpret the following expression (5y^2-7)^3/(2y)^2
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![image](/tpl/images/cats/mat.png)
Mathematics, 22.06.2019 00:00, thelonewolf5020
4. bob solved the inequality problem below incorrectly. explain his error and redo the problem showing the correct answer. ā2x + 5 < 17 ā2x + 5-5 < 17-5 -2x/-2 < 12/-2 x < -6
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