Question

If the distance of the point (2,1,k) from the origin is 3 then find k

Answer 1

Answer:

yes

Step-by-step explanation:

$2 + 1 + k = 3 \\ k = 3 - 2 - 1 \\ k = 3 - 3 \\ k = 0$

Answer 2

Step-by-step explanation:

by using distance formula

d=

$\sqrt{(x 2 - x1) ^{2} + (y2 - y1 ) {}^{2} + (z2 - z1) ^{2} }$