Vectors 17 • Shortest Distance between Plane and Point/Parallel Planes • CP1 Ex9F • 🎯

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Edexcel Core Pure Year 1

Mon 9/3/20
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i think youve singlehandedly saved my predicted grades

wonkwev
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I found that planes that have identical normals you can use |d2-d1|/√... gives you the right answer.

ArashNasiri-pf
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For the exam question with shortest distance from plane r.(3i-4j+2k)=5 with co-ordinate (6, 2, 12) i got root(29).

michaelswahla
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I found this very helpful. Thank you. Just want to ask, how do you find the shortest distance between two planes or a point and a plane if you're given the equation of the plane in vector form? You only went through the method to calculate the shortest distance when the equation of the planes are given in scalar form

rishimartin
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for 9:00 i do not understand how that when x = 0, y = 0 and z = 3

RB-jdyb
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you can pick any point that works in the equation right, since the planes are parallel the distance at any point will be the same?

manbha
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can u instead work out the difference between the two planes from the origin, in this case 9/7 for OP and 5/7 for QO ( using the formula ) hence the difference is 4/7 .

lukienure
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How would you do this for a plane and a line?

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