What is the sum of the integers between $- \sqrt{13}$ $-sqrt13$ and $\sqrt{39}$ $sqrt39$ ?

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Answer 1 · 2016-11-02T10:54:38

15

$- \sqrt{13} ≅ - 3.6$ $-sqrt(13) ~= -3.6$

$\sqrt{39} ≅ 6.2$ $sqrt(39) ~= 6.2$

Hence the integers between $- \sqrt{13}$ $-sqrt(13)$ and $\sqrt{39}$ $sqrt(39)$ are:

$- 3, - 2, - 1, 0, 1, 2, 3, 4, 5, 6$ $-3, -2, -1, 0, 1, 2, 3, 4,5,6$

And the sum of these integers is: $4 + 5 + 6 = 15$ $4+5+6 = 15$

What is the sum of the integers between −√13-sqrt13 and √39sqrt39?