\[ \displaystyle \lim_{x \to + \infty} \dfrac{1-\cos x}{x} =?\]

If you can't directly input the answer into the answer box:

- input 1234 if you think it approaches \( + \infty\)
- input 4321 if you think it approaches \( - \infty \)
- input 1324 if the limit does not exist and does not approach either infinity.
- input 2016 if still none of the above options best describe the answer.

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