Question

10) Can we multiply two matrices A & B of sizes 3 X 5 and 5 X 4? If so, how many actual element multiplications of elements happen?
If not why?
A. Yes, 60
B. Yes, 300
C. No, Sizes should be same
D. No, both matrices must be square​

Answer 1

Answer:

10) Can we multiply two matrices A & B of sizes 3 X 5 and 5 X 4? If so, how many actual element multiplications of elements happen?

If not why?

A. Yes, 60

B. Yes, 300

C. No, Sizes should be same

D. No, both matrices must be square​

Explanation:

No it can't !!!

Matrix property: A matrix A of dimension [nxm] can be multiplied by another B of dimension [ txs] <=> m=t.

m=t => there exist a C = A.B of dimension [nxs].

Observe that given [3x5] and [3x5], 5!=3(not equal to) so you can't!

Thank you for your patience.