Use the Squeeze Theorem to evaluate $\displaystyle \lim_{x \to 0} x^2 \cos(3\pi/x)$.

(Verify this by graphing the functions $f(x) = -x^2$, $g(x)=x^2 \cos(3\pi/x)$, and $h(x)=x^2$ on the same screen).

$\displaystyle \lim_{x \to 0} x^2 \cos(3\pi/x) =$ .