Algebra - Linear - quiz1

Question 1: What is the determinant of [[1,0],[0,1]]?

1 0 2 -1

Question 2: What is the trace of [[2,1],[3,4]]?

5 6 10 4

Question 3: What is the determinant of [[3,0],[0,3]]?

6 9 3 0

Question 4: What is the trace of [[1,2,3],[4,5,6],[7,8,9]]?

45 9 15 6

Question 5: What is the determinant of [[2,1],[3,4]]?

5 14 -5 6

Question 6: What is the rank of [[1,0],[0,1]]?

1 2 0 3

Question 7: Is [[1,2],[2,4]] invertible?

Undefined Sometimes Yes No

Question 8: What is the determinant of [[1,2],[3,5]]?

11 1 8 Safe

Question 9: What is the trace of [[5,0],[0,5]]?

25 10 5 20

Question 10: What is the rank of [[1,2,3],[0,0,0],[0,0,0]]?

3 1 0 2

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