u(x;t) = e sin x, does not represent wave phenomenon u(x,;t) = 2 cos (x, – t)–1 travels along +â, -direction with speed c = 1[m/s] u(x,;t)= sin(x-t) does not represent wave phenomenon u(x,x,;t)= sin...

Extracted text: u(x;t) = e sin x, does not represent wave phenomenon u(x,;t) = 2 cos (x, – t)–1 travels along +â, -direction with speed c = 1[m/s] u(x,;t)= sin(x-t) does not represent wave phenomenon u(x,x,;t)= sin (x, + x, – t) travels in Ox,x, plane u(x;;t)= sin (x,) sin(t) does not represent wave phenomenon