Question

For a 2x2 matrix, A = [aij], whose elements are given by aij = i /j , write the value of a12.

Answer 1

1.The value of a12 is 1/2

2.as asked in question i=1 and j=2

and by intuition we get a12 =1/2

array A=   1  1/2

                2  1

Answer 2

$a_1_2 = \frac{1}{2}$

To find:

The value of $a_1_2$.

Given that:

2×2 matrix of a =  [$a_i_j$]

whose elements are given by $a_i_j = \frac{i}{j}$

Formula:

$a_i_j = \frac{i}{j}$

From the given data it is 2 × 2 matrix, $a_i_j$ = $\frac{i}{j}$.

Here, it consists 2 rows and 2 columns

Matrix $a_i_j$ can be represented as,

$\left[\begin{array}{ccc}a_1_1&a_1_2\\a_2_1&a_2_2\\\end{array}\right]$

Solution:

$a_i_j = \frac{i}{j}$, so that

For $a_i_j$, the value of i = 1 and for j = 2

Substituting the values for i and j, we get

Hence the value for $a_1_2 = \frac{1}{2}$

Therefore, the value for $a_1_2 = \frac{1}{2}$.

To learn more:

1. If A is a 2*3 matrix and B is a 3*4 matrix, how many columns does AB have

https://brainly.in/question/10149769

2. Construct a 3*3 matrix whose elements are aij = i*j

https://brainly.in/question/1220176