Given: A(3, 2, -1) and Q(-1, -1, -1)

To find: Distance between given two points

Formula used:

The distance between any two points (a, b, c) and (m, n, o) is given by,

Therefore,

Distance between (3, 2, -1) and (-1, -1, -1) is

= 5

Hence, Distance between A and B is 5 units