Question

What is the distance between `(9,0,1)` and `(1,-4,-2)`?

Answer 1

`d=sqrt(89)=9.434" "`units

Explanation:

The distance formula `(9, 0, 1)` and `(1, -4, -2)`

`d=sqrt((x_2-x_1)^2+(y_2-y_1)^2+(z_2-z_1)^2)`

`d=sqrt((9-1)^2+(0--4)^2+(1--2)^2)`

`d=sqrt((8^2+4^2+3^2)`
`d=sqrt(64+16+9)`
`d=sqrt(89)`

God bless....I hope the explanation is useful.