What is the sum of all the integers between

- (negative) square root of 9 and square root of 15
(Not negative 9s square root)

you want the sum of the integers from -3 to 4

they will be -3,-2,-1,0,1,2,3,4

Clearly the sum is just 4, since all the + and - pairs add to zero.

My bad!

4 is not in the list. So, the sum is just zero.

To find the sum of all the integers between -√9 and √15, we need to identify the integers within this range and then add them up.

First, let's determine the integers in the given range:

- The largest integer smaller than -√9 is -4.
- The smallest integer larger than √15 is 4.

Therefore, the integers within this range are: -4, -3, -2, -1, 0, 1, 2, 3, 4.

To find the sum of these integers, we add them up:

(-4) + (-3) + (-2) + (-1) + 0 + 1 + 2 + 3 + 4 = 0

Hence, the sum of all the integers between -√9 and √15 is 0.