\(y=A \cos (\omega t-k x)\)
\(\text { by comparing } \omega=2 \pi \times 330\)
\(2 \pi f=2 \pi \times 330\)
\(f=330\)
$(a)$ $\left(x^2-v t\right)^2$
$(b)$ $\log \left[\frac{(x+v t)}{x_0}\right]$
$(c)$ $e^{\left\{-\frac{(x+v t)}{x_0}\right\}^2}$
$(d)$ $\frac{1}{x+v t}$