Multiple Choice
Find the cofactor C 12 of the matrix.
A) C 12 = -3
B) C 12 = 2
C) C 12 = 3
D) C 12 = -2
E) none of these
Correct Answer:

Verified
Correct Answer:
Verified
Q9: Use Cramer's rule to find the solution
Q10: Use a graphing calculator to find the
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