\( \lim _{x \rightarrow 0} \frac{1-\cos 2 x}{x}= \)
\( \mathrm{P} \...
\( \lim _{x \rightarrow 0} \frac{1-\cos 2 x}{x}= \)
\( \mathrm{P} \)
(a) 0
(b) 1
W)
(c) 2
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