Question

For the vector A and B use the method of components to find the magnitude and direction of
a. the vector sum A + B
b. the vector sum B + A
c. the vector difference A-B
d. the vector difference B-A

Answer 1

I tied the law of cosines but i got 11 not 9 for the first one
please help I'm so lost and have been trying to do this problem for over an hour now

Answer 2

For this you have to add the components of each vector

Answer 3

so take A and B for instance... create a picture with them only in it

Answer 4

Now if

\[a=<a_1,a_2>\]
and
\[b=<b_1,b_2>\]

\[a+b=<a_1+b_1,a_2+b_2>\]

Answer 5

so you have to split each vector into it's components and then add them to get the vector A+B

Answer 6

let me know if you need anymore help