9. Write a Program to swap rows and columns of 4*4 matrix and calculate the sum of the secondary diagonal elements of matrix which is formed after swapping the column. Secondary diagnoal of matrix is formed by the elements A03, A12, A21, A30. Sample I/P: 1234 5678 1357 2468 O/P: Enter row to be exchanged: 2 Enter other row number to be exchanged with : 3 Matrix after swapping the row: 1234 1357 1357 2468 Enter column to be exchanged : 4 Enter other column number to be exchanged with: 2 Matrix after swapping the column 1232 5676 1353 2464 Sum of Secondary diagonal element of matrix: 14

Explain the role of arithmetic operators in programming and provide examples of addition, subtraction, multiplication, and division operations.

List three programming languages and find an example software or website that is writing in these language

explain the concerns of programmers with regards to artificial intelligence.