Simplify: |15 − 12|4 − ∣∣−21 + 98∣∣
...
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 22:00
What is the length of the segment, endpoints of which are intersections of parabolas y=x^2− 11/4 x− 7/4 and y=− 7 /8 x^2+x+ 31/8 ?
Answers: 1
Mathematics, 21.06.2019 23:30
Find measure angle 1 and measure angle 3 in the kite the diagram is not drawn on the scale
Answers: 1
Social Studies, 07.01.2020 05:31
Social Studies, 07.01.2020 05:31
Social Studies, 07.01.2020 05:31
Mathematics, 07.01.2020 05:31
English, 07.01.2020 05:31