Pt 1 Awnser ASAP awnser all of them i will give brainliest 1-6 look at all the attachments and also see pt 2 of this question

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) = .

Mackenzie needs to determine whether the rectangles are proportional. which process could she use? check all that apply.

Atransformation t : (x,y) (x-5,y +3) the image of a(2,-1) is