HELP ! HELP ! HELP ! I AM RUNNING OUT OF TIME . 10 POUNTS
...
Answers: 1
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, 22.06.2019 01:20
The bottom of a slide at the playground is 6 feet from the base of the play set. the length of the slide is 10 feet. how tall is the slide. 11.66 feet 10 feet 6 feet 8 feet
Answers: 2
Mathematics, 25.10.2020 22:40
Mathematics, 25.10.2020 22:40
Spanish, 25.10.2020 22:40
English, 25.10.2020 22:40
Mathematics, 25.10.2020 22:40
Mathematics, 25.10.2020 22:40
Mathematics, 25.10.2020 22:40
Social Studies, 25.10.2020 22:40
Mathematics, 25.10.2020 22:40
Mathematics, 25.10.2020 22:40
Mathematics, 25.10.2020 22:40
Mathematics, 25.10.2020 22:40
Biology, 25.10.2020 22:40