Mathematics
Grade9
Easy
Question
Multiply:
Hint:
We can understand the general process of matrix multiplication by the technique, "First rows are multiplied by columns (element by element) and then the rows are filled up. Multiplying matrices can be performed using the following steps:
Step 1: Make sure that the number of columns in the 1st matrix equals the number of rows in the 2nd matrix (compatibility of matrices).
Step 2: Multiply the elements of ith row of the first matrix by the elements of jth column in the second matrix and add the products. This would the element that is in the ith row and jth column of the resultant matrix.
Step 3: Place the added products in the respective positions.
The correct answer is:
We can understand the general process of matrix multiplication by the technique, "First rows are multiplied by columns (element by element) and then the rows are filled up. Multiplying matrices can be performed using the following steps:
Step 1: Make sure that the number of columns in the 1st matrix equals the number of rows in the 2nd matrix (compatibility of matrices).
Step 2: Multiply the elements of ith row of the first matrix by the elements of jth column in the second matrix and add the products. This would the element that is in the ith row and jth column of the resultant matrix.
A B =
Step 3: Place the added products in the respective positions.
A B =
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=
=
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