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Unformatted text preview: ugh the points Q, R, and S , then the
distance, d, from P to that plane is given by
the formula Express the distance d from P to ℓ in terms of
the vectors
−
−
→
a = QR , a × b
.
 a keywords: distance, distance from line, cross
product, vectors D b a × b
.
 a ℓ R Q a × b
correct
 a b sin θ = Let ℓ be the line passing through points
Q, R and P a point not on ℓ as shown in 7 d=  a · ( b × c) 
a × b where
−
−
→
a = QR , −
→
b = QS , −
−
→
c = QP . Use this formula to determine the distance
from P (2 , 4, −3) to the plane thr...
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This homework help was uploaded on 02/19/2014 for the course M 56295 taught by Professor Odell during the Spring '10 term at University of Texas at Austin.
 Spring '10
 odell

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