Question

determine whether the matrix X3x5 +Y5x9 is defined if so state the dimensions of the product

Answer 1

do you mean, you want to know if you can add one matrix that is 3x5 in dimensions to another matrix that is 5x9 in dimensions?

Answer 2

that and i need help working it :)

Answer 3

Well it's just a definition of matrix arithmetic that to add two matrices, their dimensions need to be the same.

Answer 4

ok so we can't add these ??

Answer 5

If the matrix dimensions are not the same, then you can't add them.

Answer 6

ok so they are the same so i can add them

Answer 7

Are they the same, or not?

Answer 8

the same ??

Answer 9

i think

Answer 10

What are the dimensions?

Answer 11

like 5x9 ???

Answer 12

and the other one?

Answer 13

3x5

Answer 14

so how are they the same?

Answer 15

i was think because they were both had an X but i see what you are saying now xD

Answer 16

...

Answer 17

so you can't do it ??? is that right