Answers: 3
Mathematics, 21.06.2019 19:50
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
Mathematics, 21.06.2019 20:00
The scatterplot below shows the number of hours that students read weekly and the number of hours that they spend on chores weekly. which statement about the scatterplot is true?
Answers: 2
Joinzoom id 85063600058 pw 8nT408...
Social Studies, 01.11.2019 18:31
Geography, 01.11.2019 18:31
Social Studies, 01.11.2019 18:31
Computers and Technology, 01.11.2019 18:31
Biology, 01.11.2019 18:31
Physics, 01.11.2019 18:31
Mathematics, 01.11.2019 18:31
English, 01.11.2019 18:31
Mathematics, 01.11.2019 18:31
History, 01.11.2019 18:31
History, 01.11.2019 18:31
Mathematics, 01.11.2019 18:31
English, 01.11.2019 18:31
History, 01.11.2019 18:31