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What is the dot product of #<3,5,-3 ># and #<-3,6,3 >#?

1 Answer

Mar 19, 2016

#"see animation"#
#A.B=12#

Explanation:

enter image source here

#A=<3,5,-3>" "B= <-3,6,3>#
#A.B=3*(-3)+5*6+(-3)*3#
#A.B=-9+30-9#
#A.B=30-18#
#A.B=12#

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