anonymous
  • anonymous
Vector PQ = <-3,1,-2> Vector PR = <1,-1,1> PQ x PR = ????
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
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TuringTest
  • TuringTest
is that a cross-product?
anonymous
  • anonymous
PQxPR = <-1, 1, 2>
anonymous
  • anonymous
yes

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anonymous
  • anonymous
http://www.youtube.com/watch?v=qsgK1d-_8ik
anonymous
  • anonymous
(b) Find the area of the triangle PQR.
anonymous
  • anonymous
(a) Find a nonzero vector orthogonal to the plane through the points P, Q, and R. Was the first question... but thats the cross product im sure.
anonymous
  • anonymous
squareroot(6)/2
anonymous
  • anonymous
need the points of p q r to do a)
anonymous
  • anonymous
I used P Q R to find vector PQ and vector PR... to find part a i just needed to find the cross product... can you show me the steps please???
anonymous
  • anonymous
you answer is correct.
anonymous
  • anonymous
ok cwoool
anonymous
  • anonymous
your****

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