Answers: 2
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 21:10
The equation |pl = 2 represents the total number of points that can be earned or lost during one turn of a game. which best describes how many points can be earned or lost during one turn? o o -2 2 oor 2 -2 or 2 o
Answers: 1
Mathematics, 21.06.2019 23:30
An engineer scale model shows a building that is 3 inches tall. if the scale is 1 inch = 600 feet, how tall is the actual building?
Answers: 3
75 meters in 30 seconds how many meters per second...
Health, 29.03.2020 05:52
Mathematics, 29.03.2020 05:53
Mathematics, 29.03.2020 05:53
Physics, 29.03.2020 05:53
Mathematics, 29.03.2020 05:53
Mathematics, 29.03.2020 05:54
Mathematics, 29.03.2020 05:54
Mathematics, 29.03.2020 05:54
Mathematics, 29.03.2020 05:54
Chemistry, 29.03.2020 05:54