Question

If A=[1 3 4 -2 -1 0] and B=[6 2 -2], what is AB?
Will post a picture of the matrices in the comments. Please help!

Answer 1

have you learnt, multiplication of matrices ?

Answer 2

Sort of. Would I multiply the first row of the first matrix by the second matrix? Then again with the second row?

Answer 3

1st row of the first matrix by the first column of 2nd matrix,

\(\Large 1 \times 6 + 3 \times 2 + 4 \times (-2) =... \)

did you get how i got that ^ ?

Answer 4

Yeah I think so. Then for the second row would it be -2*6+(-1)*2+0*(-2) ?

Answer 5

correct! :)

Answer 6

I was just working on getting that! :) Thank you!!

Answer 7

welcome ^_^