This exercise shows why each pivot (in eli1nination by pivoting) must be in a different row. (a) In Example 7, make the third pivot on entry (3, 3) instead of on entry (3, 2). Can you still read off the solution

What type of forensic evidence was recovered during the bomb set off at the new mexico facility on the video that was similar to the evidence obtained at the boston bombings and how did the evidence allow the researchers to connect other pieces of evidence to the same bomb?