Question

evaluate this matrix

Answer 1

I will work it out give me some time!

Answer 2

okay thank you!

Answer 3

Hello this matrix multiplication won't be possible

Answer 4

i had a feeling

Answer 5

yes its because the number of rows in the first matrix does no match with the number of columns in the second matrix

Answer 6

can you help me with like 2 more

Answer 7

\[\Large [3\times 4] X[2\times3] \] is undefined for Matrix multiplication, as @UditKulka suggested, always check for the rows and columns first.

Answer 8

yes

Answer 9

If A = \[\left[\begin{matrix}1 & 4 \\ 5 & 2\end{matrix}\right]\]
and B =
\[\left[\begin{matrix}2 & 7 \\ 9 & 10\end{matrix}\right]\]
Find A - B

Answer 10

if two matrix cannot be multiplied they are called non-compatible in mathematics

Answer 11

\[\left[\begin{matrix}1 & 4 \\ 5 & 2\end{matrix}\right]-\left[\begin{matrix}2 & 7 \\ 9 & 10\end{matrix}\right]\]=
\[\left[\begin{matrix}-1 & -3 \\ -4 &?\end{matrix}\right]\]

Answer 12

-8

Answer 13

yes!

Answer 14

yay! one more. If A =
\[\left[\begin{matrix}1 & 5 \\ -3 & 0\end{matrix}\right]\]
And B =
\[\left[\begin{matrix}3 & -2 \\ -4 & 6\end{matrix}\right]\]
Find A X B

Answer 15

\[\left[\begin{matrix}-17 &8 \\ -29 & 16\end{matrix}\right]\]

Answer 16

That's not any of my choices :(

Answer 17

instead of 8, it's either 28 or -28

Answer 18

instead of -29, its 9 or -9

Answer 19

and instead of 16, it's 6 or -6

Answer 20

you will find this site useful for matrices @katherinesmith http://www.mathportal.org/calculators/matrices-calculators/matrix-operations-calculator.php