![subject](/tpl/images/cats/mat.png)
Mathematics, 20.08.2020 05:01 Jeileenrojas
Why can’t we always measure angles in degrees? Why do we have radians?
![ansver](/tpl/images/cats/User.png)
Answers: 3
![](/tpl/images/ask_question.png)
![](/tpl/images/ask_question_mob.png)
Other questions on the subject: Mathematics
![image](/tpl/images/cats/mat.png)
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 19:50, Roshaan8039
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
![image](/tpl/images/cats/mat.png)
Mathematics, 21.06.2019 20:00, alisonlebron15
An investment decreases in value by 30% in the first year and decreases by 40% in the second year. what is the percent decrease in percentage in the investment after two years
Answers: 1
You know the right answer?
Why can’t we always measure angles in degrees? Why do we have radians?...
Questions in other subjects:
![Konu](/tpl/images/cats/istoriya.png)
History, 05.01.2022 05:40
![Konu](/tpl/images/cats/istoriya.png)
History, 05.01.2022 05:40
![Konu](/tpl/images/cats/mat.png)
![Konu](/tpl/images/cats/istoriya.png)
![Konu](/tpl/images/cats/fizika.png)
![Konu](/tpl/images/cats/User.png)
![Konu](/tpl/images/cats/en.png)
![Konu](/tpl/images/cats/User.png)
SAT, 05.01.2022 05:40
![Konu](/tpl/images/cats/istoriya.png)
History, 05.01.2022 05:40