Question

Which point is farther from the origin, (,1,2,-2) or (0,0,5)?

Answer 1

`\sqrt{ {1}^(2) + {2}^(2) + {( - 2)}^(2) } = √(1 + 4 + 4) = √(9) = 3`

(1, 2, -2) is 3 units away from the origin.

(0, 0, 5) is 5 units away from the origin.

So (0, 0, 5) is farther away from the origin.