Determine whether the vector u belongs to the null space of the matrix A. -2 -BA-B A-[335] = -1 -3 11

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Q: Question 9: Use Cramer's rule to solve: 6x1 + 2x2x3 = 0 3x1 + 3x2 + 2x3 = -1 4x1- x₂ + 3x3 = 1

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