Determine whether each pair of matrices are inverses



Determine whether each pair of matrices are inverses. (You may use your calculator)

1. P = [pic], Q = [pic] 2. R = [pic], S = [pic]

3. L = [pic], M = [pic] 4. U = [pic], V = [pic]

5. A = [pic], B = [pic] 6. X = [pic], Y = [pic]

Find the inverse of each matrix, if it exists. (NO calculator)

7. [pic] 8. [pic]

9. [pic] 10. [pic]

11. [pic] 12. [pic]

13. [pic] 14. [pic]

15. [pic] 16. [pic]

Use a graphing calculator to find the inverse of each matrix

17. [pic] 18. [pic]

19. [pic] 20. [pic]

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