The ratio of the results of the local football team games won and lost is: 24: 6 simplify this ratio.

Given abcd ac=38 and ae=3x+4 find the value of x

Given f(x)= 9x+1 and g(x)=x^3, choose the expression (f*g)(x)

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) = .