(5^2 – 10) ÷ 5 × 2^3?
i know its 24 but can someone please explain it to me?

Asap 25 pts + brainliest to right/best answer

Which point is a solution to the inequality shown in this graph (-3,-3)(3,-1)

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) = .