y=sinθ(t)y=\sin \theta(t)y=sinθ(t)
y=cosθ(t,x)y=\cos \theta(t, x)y=cosθ(t,x)
v=sinθ(t,x)v=\sin \theta(t, x)v=sinθ(t,x)
y=tanθ(t,x)y=\tan \theta(t, x)y=tanθ(t,x)