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 20:00
Compare the following pair of numbers a and b in three ways. a. find the ratio of a to b. b. find the ratio of b to a. c. complete the sentence: a is percent of b. a=120 and b=340 a. the ratio of a to b is . b. the ratio of b to a is . c. a is nothing percent of b.
Answers: 1
Mathematics, 21.06.2019 22:30
Shannon drove for 540 minutes. if she traveled 65 miles per hour,how many total miles did she travel?
Answers: 2
Trigonometry, pls help ty
...
...
Computers and Technology, 24.03.2021 19:00
Social Studies, 24.03.2021 19:00
Mathematics, 24.03.2021 19:00
Biology, 24.03.2021 19:00
History, 24.03.2021 19:00
Mathematics, 24.03.2021 19:00
French, 24.03.2021 19:00
Social Studies, 24.03.2021 19:00
Mathematics, 24.03.2021 19:00