Damascus Road
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I have two points, P(0,0,0) and Q(-1,-2,0)
and a plane x + 7y - 15z = 30
May I simply:
\sqrt{(1-0)^{2} + (7-0)^{2} + (-15-0)^{2}}
\sqrt{(1+1)^{2} + (7+2)^{2} + (15-0)^{2}}
and the one with the lesser magnitude is closer?
and a plane x + 7y - 15z = 30
May I simply:
\sqrt{(1-0)^{2} + (7-0)^{2} + (-15-0)^{2}}
\sqrt{(1+1)^{2} + (7+2)^{2} + (15-0)^{2}}
and the one with the lesser magnitude is closer?