Question

What is the distance between `(8,3,4)` and `(1,2,5)`?

Answer 1

`"distance="sqrt51`

Explanation:

`P_1=(8,3,4)" "P_2=(1,2,5)`
`Delta x=1-8=-7`
`Delta y=2-3=-1`
`Delta z=5-4=1`
`"distance="sqrt(Delta x^2+ Delta y^2 + Delta z^2)`
`"distance:"sqrt((-7)^2+(-1)^2+1^2)`
`"distance="sqrt(49+1+1)`
`"distance="sqrt51`