# Limits going wild

Calculus Level 3

$\lim_{x\rightarrow0}\left(\frac{1}{x^{2}}-\frac{1}{\sin^{2}(x)} \right)$

If the value of the limit above is of the form $$-\frac{a}{b}$$ for coprime positive integers $$a$$ and $$b$$, then input the answer as $$a+b$$.

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