lim<span class="math-inline">_{x \to 0} \left( \cos(\sin(3x)) - 1 \right) \div x^2 equals</span>
<span class="math-inline">-\frac{9}{2}</span>
<span class="math-inline">-\frac{3}{2}</span>
<span class="math-inline">\frac{3}{2}</span>
<span class="math-inline">\frac{9}{2}</span>