Question

Find the value of a23 + a32 in the matrix A = [aij]3 x 3
|2i - il if i> j
-i+2j+3 if igreater than or equal to j​

Answer 1

Given: A = [aij]3 x 3 , |2i - jl if i< j , -i+2j+3 if i >j

To find:  a23 + a32

Solution:

• As we have given the matrix in the form of i and j, so we need to find the element considering the given equations.

• Now, consider a23. In this, i < j so

           a23 = mod(2(2) - 3) = 1

• Now, consider a32. In this, i > j so

           a32 = -3 + 2(2) + 3 = 4

           a23 + a32 = 1 + 4 = 5

Answer:

              So, the value of a23 + a32 is 5

Answer 2

Answer:

11

Step-by-step explanation:

Given:

$\binom{ \: \: \: \: \: \: \: |2i - j | \: \: \: \: \: \: if \: \: i > j}{ - i + 2j + 3 \: \: \: \: if \: i \leqslant j}$

Solution:

a23 = -(2)+2(3)+3 = 7

a32 = |2(3)-(2)| = 4

a23+a32 = 11