Find the exact value of x.
...
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, 21.06.2019 20:30
Jason went to an arcade to play video games. he paid $2 for every 11 tokens he bought. he spent a total of $16 on tokens. which equation can be used to determine,t, the number lf tokens jason bought
Answers: 1
English, 18.12.2019 15:31
Mathematics, 18.12.2019 15:31
History, 18.12.2019 15:31
Mathematics, 18.12.2019 15:31
History, 18.12.2019 15:31
Mathematics, 18.12.2019 15:31
Mathematics, 18.12.2019 15:31
English, 18.12.2019 15:31
History, 18.12.2019 15:31
Chemistry, 18.12.2019 15:31