Find the inverse of matrix A and check it by calculating 
. 
Definitions:
Guesses
Estimations or predictions made without sufficient information or evidence.
Misinformation Effect
The phenomenon whereby memories become distorted by exposure to misleading information after an event has occurred.
Memory Construction
The process by which the brain creates memories, not just by recalling but also by piecing together various fragments of information.
Dynamics
The branch of physics concerned with the study of forces and their effects on motion.
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