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What is the cross product of #<-3,4, 8 ># and #<-9,3,1>#?

1 Answer

Mar 5, 2016

#vec a x vec b=20i-69j+27k#

Explanation:

enter image source here
#vec a=<-3,4,8" "vec b=<-9,3,1>#
#vec a x vec b=i(4-24)-j(-3+72)+k(-9+36)#
#vec a x vec b=20i-69j+27k#

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