Which of the following is the correct way to perform matrix multiplication between matrices x and y?   Question 6 options:   dot(x,y)   cross(x,y)   x*y   x.*y Matrix multiply A times B in that order. What is the value in row 1, column 1 of the result of the multiplication? A = [1 3 5;      2 4 6]; B = [-2  4;       3  8;      12 -2];   What is the dot product of A and B? A = [1 3 5] B = [-3 -2 4] I want to matrix multiply M times another matrix. How many rows does the other matrix need to have? M = [1 3 5;      2 4 6;      9 2 1;      7 3 1]; I calculated the determinant of a matrix  and got 0, so...   Question 11 options:   The matrix does NOT have an inverse   The matrix has an inverse Fill in the blank to calculate the determinant of M. M = [7 2;      1 1] ___________   Question 12 options:   determinant(M)   determin(M)   det(M)   deter(M)   Question 13 (1 point)                 I calculated the determinant of a matrix  and got -4, so...   Question 13 options:   The matrix does NOT have an inverse   The matrix has an inverse

Database System Concepts
7th Edition
ISBN:9780078022159
Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan
Chapter1: Introduction
Section: Chapter Questions
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Which of the following is the correct way to perform matrix multiplication between matrices x and y?

 

Question 6 options:

 

dot(x,y)

 

cross(x,y)

 

x*y

 

x.*y

Matrix multiply A times B in that order. What is the value in row 1, column 1 of the result of the multiplication?
A = [1 3 5;
     2 4 6];
B = [-2  4;
      3  8;
     12 -2];

 

What is the dot product of A and B?
A = [1 3 5]
B = [-3 -2 4]

I want to matrix multiply M times another matrix. How many rows does the other matrix need to have?
M = [1 3 5;
     2 4 6;
     9 2 1;
     7 3 1];

I calculated the determinant of a matrix 
and got 0, so...

 
Question 11 options:
 

The matrix does NOT have an inverse

 

The matrix has an inverse

Fill in the blank to calculate the determinant of M.
M = [7 2;
     1 1]
___________

 
Question 12 options:
 

determinant(M)

 

determin(M)

 

det(M)

 

deter(M)

 

Question 13 (1 point)

 
 
 
 
 
 
 
 

I calculated the determinant of a matrix 
and got -4, so...

 
Question 13 options:
 

The matrix does NOT have an inverse

 

The matrix has an inverse

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