 Hello and welcome to this session. Let us understand the following problem today. Evaluate the determinant 2-1-2-0-2-1-3-5-0. Now let us write the solution. We have 2-1-2-0-2-1-3-5-0. Now solving this we get, which is equal to 2-2-0-1-5 plus 1-0-3-1 minus 2-0-5 minus 2-3 which is equal to 2-0-5 plus 1-3 minus 2-0-6 which is equal to 2-5-3 minus 2-6 which is equal to minus 10 plus 3 plus 12 which is equal to minus 10 plus 15 which is equal to 5. Therefore the required answer is 5. I hope you understood the problem. Bye and have a nice day.