For each \( t \in R \) let \( [t] \) be the greatest integer less than or equal to t. Then \( \l...

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For each \( t \in R \) let \( [t] \) be the greatest integer less than or equal to t. Then \( \lim _{x \rightarrow 0^{+}} x\left(\left[\frac{1}{x}\right]+\left[\frac{2}{x}\right]+\ldots \ldots+\left[\frac{15}{x}\right]\right) \)
P
(1) is equal to 120
(2) does not exist (in R) (3) is equal to 0
(4) is equal to 15
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