Question

Let A (2, 1,) B (3, 1,) C (4, 2,) and D (1, 5). Find the component form and magnitude of the vector. ---- ---- CD - AB?

Answer 1

multiply verctor CD and then substract AB from it, then we will find the magnitude

Answer 2

i multiply 4,2 and 1,5 for CD just like dot product?

Answer 3

yes

Answer 4

Ok

Answer 5

Ok i got 35 for CD

Answer 6

I think i did that right , but iwas not sure if i had to multiply or add them

Answer 7

u dont add them,

Answer 8

Ok i got 4,10

Answer 9

4*1 and 2*5 right

Answer 10

yes

Answer 11

Ok, i was starting to feel like i forgot already

Answer 12

wait you were right i was doing the cross product dont wanna confuse you

Answer 13

Ok so now i do AB which would be 2*5 =10 and 1* (-1)= -1 (10,-1)

Answer 14

Oh the 35 one?

Answer 15

Thats ok

Answer 16

yeah

Answer 17

So AB would be 0