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 20:00
Given ab and cb are tangents of p, and m =10°. what is the measure of abp?
Answers: 3
Mathematics, 21.06.2019 21:00
If 30 lb of rice and 30 lb of potatoes cost ? $27.60? , and 20 lb of rice and 12 lb of potatoes cost ? $15.04? , how much will 10 lb of rice and 50 lb of potatoes? cost?
Answers: 1
Mathematics, 22.06.2019 00:30
Which number can each term of the equation be multiplied by to eliminate the decimals before solving? 5.6j- 0.12=4+1.1j
Answers: 3
What number is equal to its opposite of 10-(-7)?...
Mathematics, 31.08.2019 19:30
Mathematics, 31.08.2019 19:30
Mathematics, 31.08.2019 19:30
Mathematics, 31.08.2019 19:30
Biology, 31.08.2019 19:30
Mathematics, 31.08.2019 19:30
History, 31.08.2019 19:30
English, 31.08.2019 19:30