Answers: 1
Mathematics, 21.06.2019 19:50
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) = .
Answers: 3
Mathematics, 21.06.2019 21:30
What is the solution to this system of equations? y= 2x - 3.5 x - 2y = -14
Answers: 2
Mathematics, 21.06.2019 23:00
Suppose that 15 inches of wire cost 60 cents. at the same rate, how much (in cents) will 12 inches of wire cost
Answers: 2
Mathematics, 22.06.2019 01:20
The first week samantha learned to read braille, she could read 10 words per minute. in the second week she increased her speed by 20%. in the third week she increased her speed again by another 25%. how many words could she read per minute by the third week? hurry and tell me!
Answers: 1
What is the value of x pls work fast...
Mathematics, 13.11.2020 21:20
Health, 13.11.2020 21:20
Mathematics, 13.11.2020 21:20
Chemistry, 13.11.2020 21:20
Social Studies, 13.11.2020 21:20
Mathematics, 13.11.2020 21:20
Mathematics, 13.11.2020 21:20
English, 13.11.2020 21:20
Mathematics, 13.11.2020 21:20