Answers: 2
Mathematics, 21.06.2019 19:50
Prove (a) cosh2(x) โ sinh2(x) = 1 and (b) 1 โ tanh 2(x) = sech 2(x). solution (a) cosh2(x) โ sinh2(x) = ex + eโx 2 2 โ 2 = e2x + 2 + eโ2x 4 โ = 4 = . (b) we start with the identity proved in part (a): cosh2(x) โ sinh2(x) = 1. if we divide both sides by cosh2(x), we get 1 โ sinh2(x) cosh2(x) = 1 or 1 โ tanh 2(x) = .
Answers: 3
Mathematics, 21.06.2019 20:00
Given the equation y โ 4 = three fourths(x + 8) in point-slope form, identify the equation of the same line in standard form. โthree fourthsx + y = 10 3x โ 4y = โ40 y = three fourthsx + 12 y = three fourthsx + 10
Answers: 1
Mathematics, 22.06.2019 01:20
What is the absolute value of the complex number -4- 2 v14 3.15 14 18
Answers: 1
6+9/3+16-4*2;29 parenthisis...