SOLUTION: if A is a square matrix of order 3 and |A| = 64 find |2A| i like to know if my solution is correct A * 64 = A power 3 64 = A power 2 A = 8. therefore |2A| = 2 po

SOLUTION: if A is a square matrix of order 3 and |A| = 64 find |2A| i like to know if my solution is correct A * 64 = A power 3 64 = A power 2 A = 8. therefore |2A| = 2 po

Algebra.Com

Question 1024739: if A is a square matrix of order 3 and |A| = 64 find |2A|
i like to know if my solution is correct
A * 64 = A power 3
64 = A power 2
A = 8. therefore |2A| = 2 power 3 * 8 = 8 * 8 = 64. |2A| = 64
Answer by robertb(5830) (Show Source): You can put this solution on YOUR website!
If and A is order 3, then .
For a square matrix A, , so if then also.
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