Ashley1nOnly
  • Ashley1nOnly
In exercises the component form of the vector. 12.)The sum of AB and CD where A(1,-1) B(2,0) C(-1,3) D(-2,2) I got <0,4> Is this the correct answer?
Mathematics
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SOLVED
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chestercat
  • chestercat
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Ashley1nOnly
  • Ashley1nOnly
AB=<3,-1> CD=<-3,5> So adding i got <0,4>
jdoe0001
  • jdoe0001
hmmm does it mean \(\large A\cdot B+C\cdot D?\)
Ashley1nOnly
  • Ashley1nOnly
They are vectors

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jdoe0001
  • jdoe0001
\(A\cdot B\ne A+B\) thus
jdoe0001
  • jdoe0001
I could be wrong, but sounds as if it's asking for the "dot product" of AB and the "dot product" of CD and then their sum
Ashley1nOnly
  • Ashley1nOnly
No that's in the next section. This is just asking for the sum of the two vectors giving these two points and i wanted to know if it was right.
jdoe0001
  • jdoe0001
hmmm

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