For each t in R let [t] be the greatest ...

For each `t in R` let `[t]` be the greatest integer less than or equal to t then `lim_(xrarr0^+)x([1/t]+[2/t]+...+[15/t])` (1) is equal to 0 (2) is equal to 15 (3) is equal to 120 (4) does not exist (in R)

is equal to 15

is equal to 120

does not exist (in R)

is equal to 0

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