ACT Prep - Matrices TI84 Name: ______________________________________________________ Date: _____________________________________ Period:___________ Use the following matrices for all problems: 2 6 2 3 5 2 0 7 0 3 4 2 7 5 1 A B C 2 1 4 D 3 4 E F 4 7 3 1 0 4 1 3 1 3 8 8 3 9 5 4 1 Perform the indicated operation. If it is not possible, write ∅: 1. –4E 2. B + D 3. B – E 4. B + E 5. ½C 6. ED 7. F – D 8. 2D – 3F 9. B2 10. A2 11. AB 12. AD 13. det A 14. det B 15. det C 16. inv A