Simplify the fraction
...
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 23:30
In the equation sqrt(n+5)-sqrt(11-10)=1. what is the value of n
Answers: 1
English, 24.03.2021 18:00
English, 24.03.2021 18:00
English, 24.03.2021 18:00
English, 24.03.2021 18:00
Mathematics, 24.03.2021 18:00
Mathematics, 24.03.2021 18:00
History, 24.03.2021 18:00
Mathematics, 24.03.2021 18:00