## Ashley1nOnly one year ago 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?

1. Ashley1nOnly

AB=<3,-1> CD=<-3,5> So adding i got <0,4>

2. jdoe0001

hmmm does it mean $$\large A\cdot B+C\cdot D?$$

3. Ashley1nOnly

They are vectors

4. jdoe0001

$$A\cdot B\ne A+B$$ thus

5. 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

6. 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.

7. jdoe0001

hmmm