WILL GIVE BRANLIEST The point (3,4) is on the graph of y=f(x). State the coordinates of the image of this point on each graph.
A)y=f(2x)
b)y=f(0.5x)
c)y=f(1/3x)
d)y=f(-4x)

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) = .