Refer to the figure, the value of \( \lim _{x \rightarrow 0^{+}} \frac{f(-x) x^{2}}{\left\{\frac... VIDEO
Refer to the figure, the value of \( \lim _{x \rightarrow 0^{+}} \frac{f(-x) x^{2}}{\left\{\frac{1-\cos x}{[f(x)]}\right\}} \) where [·] denote greatest integer function and \( \{\cdot\} \) denote fraction part function.
(a) 6
(b) 12
(c) 18
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