Classify the triangle shown by its sides and angles. Check all that apply. 73°
349
730
Equilateral
Scalene
Isosceles
Obtuse
Right
Acute
Equiangular

What can you determine about the solutions of this system

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) = .

How long does it take natsumi to clean up after she is done? table: .area time30. 245. 2.7560. 3.5