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Let A be a 3 × 3 matrix. If det(cof(A)) = 4, find det(A). (Answer: ±2)
How to do this question? What time is solar eclipse on aug 21, 2017? Solve by the elimination method.
9x+8y=−64 , 5x−8y=−48 (FIND THE ORDERED PAIR)? Need help with chemistry homework i dont know how to work any of them!!? When fuel burns what type of energy is created?