hey guys, i am stuck on one more problem. Can anyone guide me onto the right path on how to start this?(adsbygoogle = window.adsbygoogle || []).push({});

Use this formula for the perpendicular distance between a point and a plane

D= |ax+by+cz-d| all over the square root of (a^2+b^2+c^2)

to show that the perpendicular distance D between the two parallel planes ax+by+cz+d1=0 and ax+by+cz+d2=0 is

D= |d1-d2| all over the square root of (a^2+b^2+c^2)

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# Another vector proof

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