Find dimensions

Question

A_5x3 times B_3x1

 

 

a. No solution

b 3x3

c.5x1

d.5x3

Answer 1

This is matrix multiplication. The task is to find the dimensions (number row and number of columns) of the product of two matrices.

 

A_{α x β} · B_κ · λ = C_α · λ In the product, C, the number of rows is the same as the number of rows in the first matrix, the number of columns is the same as the number of rows in the second matrix.

 

C. 5 x 1