Perform the following operations on the given matrices: 
Definitions:
Agreeableness
A personality trait that involves being kind, empathetic, cooperative, and considerate of others.
Extraversion
A personality trait characterized by outgoing, energetic, and sociable behaviors.
Alaska
The largest state in the United States, located in the northwest extremity of North America, known for its diverse terrain of open spaces, mountains, and forests.
Cheerfulness
A state or quality of being noticeably happy and optimistic, often showing a readiness to engage socially with others.
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