Chapter 4.1, Problem 2CYP

A.

To determine

To find: The given data in the matrix form.

Answer to Problem 2CYP

The given data in the matrix form is $\left[\begin{array}{ccc}3.25& 5.00& 7.75\\ 3.50& 5.50& 8.00\\ 3.75& 6.00& 8.73\\ 4.00& 6.50& 9.00\end{array}\right]$ .

Explanation of Solution

Given information:

The given set of information is,

  

The given data in the matrix form is obtained as

  $\mathrm{A}=\left[\begin{array}{ccc}3.25& 5.00& 7.75\\ 3.50& 5.50& 8.00\\ 3.75& 6.00& 8.73\\ 4.00& 6.50& 9.00\end{array}\right]$

Thus, the given data in the matrix form is $\left[\begin{array}{ccc}3.25& 5.00& 7.75\\ 3.50& 5.50& 8.00\\ 3.75& 6.00& 8.73\\ 4.00& 6.50& 9.00\end{array}\right]$

B.

To determine

To find: The dimension of the matrix form.

Answer to Problem 2CYP

The dimension of the matrix form is $4\times 3$ .

Explanation of Solution

Given information:

The given set of information is,

  

The given data in the matrix form is obtained as

  $\mathrm{A}=\left[\begin{array}{ccc}3.25& 5.00& 7.75\\ 3.50& 5.50& 8.00\\ 3.75& 6.00& 8.73\\ 4.00& 6.50& 9.00\end{array}\right]$

The dimension of the matrix form is $4\times 3$ .

Thus, the dimension of the matrix form is $4\times 3$ .

C.

To determine

To find: The value of ${\mathrm{a}}_{21}$ .

Answer to Problem 2CYP

The value of ${\mathrm{a}}_{21}$ is $3.50$ .

Explanation of Solution

Given information:

The given set of information is,

  

The given data in the matrix form is obtained as

  $\mathrm{A}=\left[\begin{array}{ccc}3.25& 5.00& 7.75\\ 3.50& 5.50& 8.00\\ 3.75& 6.00& 8.73\\ 4.00& 6.50& 9.00\end{array}\right]$

The dimension of the matrix form is $4\times 3$ .

The value of ${\mathrm{a}}_{21}$ is $3.50$ .

Thus, the value of ${\mathrm{a}}_{21}$ is $3.50$ .