Question

What is the distance between `(-9,3,1)` and `(-1,4,-2)`?

Answer 1

`s=sqrt 74`

Explanation:

`P_1->(x_1,y_1,z_1) " the point of "P_1`
`P_2->(x_2,y_2,z_2)" the point of "P_2`
`Delta x=x_2-x_1=-1+9=8`
`Delta y=y_2-y_1=4-3=1`
`Delta z=z_2-z_1=-2-1=-3`
`"s:distance between the Point of " P_1 " and "P_2"`
`s=sqrt(Delta x^2+Delta y^2+Delta z^2)`
`s=sqrt(64+1+9)`
`s=sqrt 74`