 Hello and welcome to the session. Let us understand the following problem today. Evaluate the determinant 3-1-2-0-0-1-3-5-0. Now let us write the solution we have 3-1-2-0-0-1-3-5-0 which is equal to 3 multiplied by 0-0-5-1 plus 1-0-3-1 plus minus 2-0-5-0-3 which is equal to 3 multiplied by minus 5 plus 1-3 plus 0 which is equal to minus 15 plus 3 which is equal to minus 12. Therefore the required answer is minus 12. I hope you understood the problem. Bye and have a nice day.