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Page 31
2012 UPCAT, ACET, DLSUET, USTET @ www.fb.com/Mathalino 31
• AB
• BA
• DB
• CD
6. Find the inverse of , if it exists.
•
•
•
• does not exist
7. Solve X − = .
•
•
•
•
2012 UPCAT, ACET, DLSUET, USTET @ www.fb.com/Mathalino 31
• AB
• BA
• DB
• CD
6. Find the inverse of , if it exists.
•
•
•
• does not exist
7. Solve X − = .
•
•
•
•
