Quandaries
and Queries 

I have to find the determinant of the following matrix


Hi, (I am displaying the matrix as a table since it's easier for me to do that.) When I looked at this matrix I decided to work with the second column since it contains two zeros. I performed three operations
This gave me
which is 1 times
Here again I decided to work with the second column. I performed the three operations
This gave me
Thus I have 1 times
Looking at the third row I decided to add the first column to the third column to get
At this point I decided to expand along the third row and I finally got the value of the determinant to be 319. Cheers,


